Britney Spears stands on table in uber-mini dress at 'The Ellen Show'

Work, Brit!

Britney Spears made a surprise appearance on "The Ellen DeGeneres Show" on Friday, where she announced that she was making a big announcement on October 18. 

For her appearance, Spears rocked an burgundy uber-mini dress with ruffled sleeves, a choker collar and a plunging neckline. Her signature blonde locks cascaded down as she made her way out onto the stage to deafening cheers from the audience.

"I actually have a huge announcement to make," Spears said as she sat down. "My announcement is actually that I have an announcement. I can't announce the announcement until October 18th. [I'm] a little early."

See her look in the gallery below:

45 PHOTOS
Britney Spears out and about in recent years
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Britney Spears out and about in recent years
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PARIS, FRANCE - AUGUST 27: Britney Spears is seen in Paris ahead of her two 'Piece of Me' tour dates on August 27, 2018 in Paris, France. (Photo by Marc Piasecki/Getty Images for BCU)
THE TONIGHT SHOW STARRING JIMMY FALLON -- Episode 0903 -- Pictured: (l-r) Jimmy Fallon as Sara, Britney Spears as Abby during 'Ew!' on July 26, 2018 -- (Photo by: Andrew Lipovsky/NBC/NBCU Photo Bank via Getty Images)
BRIGHTON, ENGLAND - AUGUST 04: Britney Spears performs on stage during the Britney Spears 'Piece Of Me' Summer Tour - Brighton Pride at Preston Park on August 4, 2018 in Brighton, England. (Photo by Dave Hogan/BCU18/Getty Images for BCU)
LONDON, ENGLAND - AUGUST 24: Britney Spears on stage during the 'Piece Of Me' Summer Tour at the O2 Arena on August 24, 2018 in London, England. (Photo by Gareth Cattermole/BCU18/Getty Images for BCU)
NATIONAL HARBOR, MD - JULY 12: Britney Spears performs on stage during her 'Piece of Me' Summer Tour Opener at The Theater at MGM National Harbor on July 12, 2018 in National Harbor, Maryland. (Photo by Kevin Mazur/BCU18/Getty Images for BCU)
BEVERLY HILLS, CA - APRIL 12: (EDITORS NOTE: Recrop of image number 945532332) Honoree Britney Spears (L) and Sam Asghari attend the 29th Annual GLAAD Media Awards at The Beverly Hilton Hotel on April 12, 2018 in Beverly Hills, California. (Photo by J. Merritt/Getty Images for GLAAD)
NATIONAL HARBOR, MD - JULY 12: Britney Spears performs on stage during her 'Piece of Me' Summer Tour Opener at The Theater at MGM National Harbor on July 12, 2018 in National Harbor, Maryland. (Photo by Kevin Mazur/BCU18/Getty Images for BCU)
BEVERLY HILLS, CA - APRIL 12: Britney Spears attends the 29th Annual GLAAD Media Awards - Arrivals at The Beverly Hilton Hotel on April 12, 2018 in Beverly Hills, California. (Photo by David Crotty/Patrick McMullan via Getty Images)
BEVERLY HILLS, CA - APRIL 12: Honoree Britney Spears accepts the Vanguard Award onstage at the 29th Annual GLAAD Media Awards at The Beverly Hilton Hotel on April 12, 2018 in Beverly Hills, California. (Photo by J. Merritt/Getty Images for GLAAD)
BEVERLY HILLS, CA - APRIL 12: Vanguard Award recipient Britney Spears poses backstage at the 29th Annual GLAAD Media Awards at The Beverly Hilton Hotel on April 12, 2018 in Beverly Hills, California. (Photo by J. Merritt/Getty Images for GLAAD)
HOLLYWOOD, CA - FEBRUARY 24: Britney Spears attends the 4th Hollywood Beauty Awards on February 25, 2018 in Hollywood, California.(Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - FEBRUARY 25: Singer Britney Spears attends the 4th Hollywood Beauty Awards at Avalon Hollywood on February 25, 2018 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - NOVEMBER 29: Sean Federline, Jayden James Federline, Britney Spears and Sam Asghari attend a basketball game between the Los Angeles Lakers and the Golden State Warriors at Staples Center on November 29, 2017 in Los Angeles, California. (Photo by Allen Berezovsky/Getty Images)
LOS ANGELES, CA - NOVEMBER 29: Britney Spears and Sam Asghari attend a basketball game between the Los Angeles Lakers and the Golden State Warriors at Staples Center on November 29, 2017 in Los Angeles, California. (Photo by Allen Berezovsky/Getty Images)
LAS VEGAS, NV - NOVEMBER 04: Singer Britney Spears speaks during the grand opening of the Nevada Childhood Cancer Foundation Britney Spears Campus on November 4, 2017 in Las Vegas, Nevada. (Photo by Gabe Ginsberg/Getty Images)
LAS VEGAS, NV - NOVEMBER 04: Singer Britney Spears (L) and talent manager Larry Rudolph listen to Clark County Commissioner Steve Sisolak's speech during the grand opening of the Nevada Childhood Cancer Foundation Britney Spears Campus on November 4, 2017 in Las Vegas, Nevada. (Photo by Gabe Ginsberg/Getty Images)
DISNEY CHANNEL PRESENTS THE 2017 RADIO DISNEY MUSIC AWARDS - Entertainment's brightest young stars turned out for the 2017 Radio Disney Music Awards (RDMA), music's biggest event for families, at Microsoft Theater in Los Angeles on Saturday, April 29. 'Disney Channel Presents the 2017 Radio Disney Music Awards' airs Sunday, April 30 (7:00 p.m. EDT). (Image Group LA/Disney Channel via Getty Images) BRITNEY SPEARS, JAMIE LYNN SPEARS
DISNEY CHANNEL PRESENTS THE 2017 RADIO DISNEY MUSIC AWARDS - Entertainment's brightest young stars turned out for the 2017 Radio Disney Music Awards (RDMA), music's biggest event for families, at Microsoft Theater in Los Angeles on Saturday, April 29. 'Disney Channel Presents the 2017 Radio Disney Music Awards' airs Sunday, April 30 (7:00 p.m. EDT). (Image Group LA/Disney Channel via Getty Images) BRITNEY SPEARS
TAIPEI, CHINA - JUNE 13: American singer Britney Spears performs during her concert at TWTC Nangang Exhibition Hall on June 13, 2017 in Taipei, Taiwan of China. (Photo by VCG/VCG via Getty Images)
DISNEY CHANNEL PRESENTS THE 2017 RADIO DISNEY MUSIC AWARDS - Grammy Award-winning pop superstar Britney Spears was honored with the 2017 RDMA 'Icon' Award in recognition a career and music that has been loved by generations of Radio Disney fans. 'Disney Channel Presents the 2017 Radio Disney Music Awards' airs Sunday, April 30 (7:00 p.m. EDT). (Image Group LA/Disney Channel via Getty Images) BRITNEY SPEARS
BEVERLY HILLS, CA - MARCH 16: Singer Britney Spears attends Art Hearts Fashion LAFW Fall/Winter 2017 - Day 3 at The Beverly Hilton Hotel on March 16, 2017 in Beverly Hills, California. (Photo by Arun Nevader/Getty Images)
LOS ANGELES, CA - FEBRUARY 11: Britney Spears arrives at the Pre-GRAMMY Gala and Salute to Industry Icons Honoring Debra Lee on February 11, 2017 in Los Angeles, California. (Photo by Steve Granitz/WireImage)
ORLANDO, FL - MARCH 13: (EDITORS NOTE: Image has been retouched.) Britney Spears enjoys a family outing with Jayden Federline, Maddie Aldridge and Sean Federline at Planet Hollywood Disney Springs on March 13, 2017 in Orlando, Florida. (Photo by Gerardo Mora/Getty Images for Planet Hollywood Observatory)
LOS ANGELES, CA - FEBRUARY 11: Britney Spears attends Pre-GRAMMY Gala and Salute to Industry Icons Honoring Debra Lee at The Beverly Hilton on February 11, 2017 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
SAN JOSE, CA - DECEMBER 03: Singer Britney Spears performs during the Now! 99.7 Triple Ho Show 7.0 at SAP Center on December 3, 2016 in San Jose, California. (Photo by C Flanigan/FilmMagic)
SAN JOSE, CA - DECEMBER 03: Singer Britney Spears performs during the Now! 99.7 Triple Ho Show 7.0 at SAP Center on December 3, 2016 in San Jose, California. (Photo by C Flanigan/FilmMagic)
LOS ANGELES, CA - DECEMBER 02: Britney Spears performs at 102.7 KIIS FM's Jingle Ball 2016 at Staples Center on December 2, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES, CA - DECEMBER 02: Britney Spears performs at 102.7 KIIS FM's Jingle Ball 2016 at Staples Center on December 2, 2016 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
LOS ANGELES , CA - DECEMBER 02: Britney Spears performs on stage during the 102.7 KIIS FM's Jingle Ball 2016 on December 02, 2016 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
LOS ANGELES, CA - DECEMBER 02: (L-R) KIIS FM Assistant Program Director/Music Director Beata Czechowski, recording artist Britney Spears, and radio personality Sisanie attend 102.7 KIIS FM's Jingle Ball 2016 presented by Capital One at Staples Center on December 2, 2016 in Los Angeles, California. (Photo by Jonathan Leibson/Getty Images for iHeartMedia)
LONDON, UNITED KINGDOM - SEPTEMBER 28: Britney Spears seen at BBC Radio One on September 28, 2016 in London, England. PHOTOGRAPH BY Barcroft Images London-T:+44 207 033 1031 E:hello@barcroftmedia.com - New York-T:+1 212 796 2458 E:hello@barcroftusa.com - New Delhi-T:+91 11 4053 2429 E:hello@barcroftindia.com www.barcroftimages.com (Photo credit should read Barcroft Images / Barcroft Media via Getty Images)
LONDON, ENGLAND - SEPTEMBER 28: Britney Spears seen at BBC Radio One on September 28, 2016 in London, England. (Photo by Neil Mockford/GC Images)
LONDON, ENGLAND - SEPTEMBER 27: Britney Spears performs during Apple Music Festival at The Roundhouse on September 27, 2016 in London, England. (Photo by Dave J Hogan/Dave J Hogan/Getty Images)
LAS VEGAS, NV - SEPTEMBER 24: Britney Spears performs onstage during the 2016 iHeartRadio Music Festival - night 2 held at T-Mobile Arena on September 24, 2016 in Las Vegas, Nevada. (Photo by Michael Tran/FilmMagic)
LAS VEGAS, NV - SEPTEMBER 24: Rapper G-Eazy (L) and singer Britney Spears perform at the 2016 iHeartRadio Music Festival at T-Mobile Arena on September 24, 2016 in Las Vegas, Nevada. (Photo by Ethan Miller/WireImage)
LAS VEGAS, NV - SEPTEMBER 24: Recording artist Britney Spears performs onstage at the 2016 iHeartRadio Music Festival at T-Mobile Arena on September 24, 2016 in Las Vegas, Nevada. (Photo by Kevin Winter/Getty Images)
LAS VEGAS, NV - SEPTEMBER 01: Britney Spears performs her Piece Of Me show at the Axis Theatre Planet Hollywood Resort on September 06, 2016 in Las Vegas, Nevada. PHOTOGRAPH BY Barcroft Images London-T:+44 207 033 1031 E:hello@barcroftmedia.com - New York-T:+1 212 796 2458 E:hello@barcroftusa.com - New Delhi-T:+91 11 4053 2429 E:hello@barcroftindia.com www.barcroftimages.com (Photo credit should read Barcroft Images / Barcroft Media via Getty Images)
LAS VEGAS, NV - SEPTEMBER 01: Britney Spears performs her Piece Of Me show at the Axis Theatre Planet Hollywood Resort on September 06, 2016 in Las Vegas, Nevada. PHOTOGRAPH BY Barcroft Images London-T:+44 207 033 1031 E:hello@barcroftmedia.com - New York-T:+1 212 796 2458 E:hello@barcroftusa.com - New Delhi-T:+91 11 4053 2429 E:hello@barcroftindia.com www.barcroftimages.com (Photo credit should read Barcroft Images / Barcroft Media via Getty Images)
NEW YORK, NY - AUGUST 29: (EXCLUSIVE COVERAGE) Britney Spears Visits Music Choice on August 29, 2016 in New York City. (Photo by Kevin Mazur/Getty Images for Music Choice)
NEW YORK, NY - AUGUST 28: Rapper G-Eazy (L) and singer Britney Spears arrive at the 2016 MTV Video Music Awards at Madison Square Garden on August 28, 2016 in New York City. (Photo by Allen Berezovsky/WireImage)
NEW YORK, NY - AUGUST 28: Britney Spears and G-Eazy perform onstage during the 2016 MTV Video Music Awards at Madison Square Garden on August 28, 2016 in New York City. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - AUGUST 28: Recording artist Britney Spears attends the 2016 MTV Video Music Awards at Madison Square Garden on August 28, 2016 in New York City. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK, NY - AUGUST 28: Britney Spears performs onstage during the 2016 MTV Video Music Awards at Madison Square Garden on August 28, 2016 in New York City. (Photo by Jeff Kravitz/FilmMagic)
Singer Britney Spears arrives for the 2016 MTV Video Music Awards August 28, 2016 at Madison Square Garden in New York. / AFP / Angela Weiss (Photo credit should read ANGELA WEISS/AFP/Getty Images)
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DeGeneres added that Spears will be making said announcement on Ellen's YouTube channel next week. 

Spears took to Instagram on Friday to share a little behind-the-scenes moment from her time at Ellen's studio, posting a video of herself standing on a wooden coffee table in her dressing room.

"Hi guys what's up on 'The Ellen Show' today and I'm getting a little cuckoo that's why I'm standing on this table," she said in the cute clip. "I have no idea why. Anyways, I'm excited!"

View this post on Instagram

Excited to be on @theellenshow today!! 🎀🎀🎀

A post shared by Britney Spears (@britneyspears) on

Her rare promotional appearance on Friday also featured a mini "Mickey Mouse Club" reunion with Ryan Gosling, who appeared on the episode to promote his new film, "First Man." Reflecting on his time on the Disney show as a tween, Gosling called Spears and fellow star Christina Aguilera "freakishly talented."

Stay tuned for what Britney Spears is gearing up to announce on October 18!

See more photos of Britney Spears through the years:

49 PHOTOS
Britney Spears' hair evolution
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Britney Spears' hair evolution
Britney Spears poses during a portrait session on October 2, 1998 in Los Angeles, California.
Singer Britney Spears attends Z100's Fifth Annual 'Jingle Ball' Concert on December 17, 1998 at Madison Square Garden in New York City. (Photo by Ron Galella, Ltd./WireImage)
Singer Britney Spears visits 'The Late Show with David Letterman' on May 25, 1999 at the Ed Sullivan Theatre in New York City. (Photo by Ron Galella, Ltd./WireImage)
(EXCLUSIVE COVERAGE � PREMIUM RATES APPLY) Britney Spears poses during a portrait session on May 1, 1999 in Los Angeles, California.
Britney Spears (Photo by Steve Granitz/WireImage)
UNITED STATES - SEPTEMBER 28: Britney Spears is on hand for screening of the movie 'Drive Me Crazy' at the Union Square Theater. (Photo by Richard Corkery/NY Daily News Archive via Getty Images)
Britney Spears (Photo by Steve Granitz/WireImage)
Britney Spears (Photo by Steve Granitz/WireImage)
Singer Britney Spears attends the 42nd Annual Grammy Awards Pre-Party Hosted by Clive Davis on February 22, 2000 at Beverly Hills Hotel in Beverly Hills, California. (Photo by Ron Galella, Ltd./WireImage)
NEW YORK - SEPTEMBER 7: American pop star Britney Spears attends the MTV Music Video Awards held at Radio City Music Hall on September 7, 2000 in New York. (Photo by Dave Hogan/Getty Images)
LONDON - APRIL 20: American pop singer Britney Spears at the Capital Radio awards in the Royal Lancaster Hotel, London on April 20, 2000. Spears won the title of London's Favourite International Female. (Photo by Dave Hogan/Getty Images)
Britney Spears In Paris, France - 2000, Britney Spears In Front Of The Eifel Tower (Photo by Brian Rasic/Getty Images)
Britney Spears (Photo by Jeff Kravitz/FilmMagic)
Singer Britney Spears watches the celebrity basketball game at 'N Sync's 'Challenge for the Children III' charity event at the Thomas & Mack Center July 29, 2001 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
Britney Spears (Photo by SGranitz/WireImage)
Singer Britney Spears attends the 'Crossroads' Hollywood Premiere on February 11, 2002 at Grauman's Chinese Theatre in Hollywood, California. (Photo by Ron Galella, Ltd./WireImage)
Britney Spears arrives at Planet Hollywood to give fans a Sneak Peek at her new photo book 'Stages', to be released with a co-pack DVD, in New York City. December 6, 2002. Photo by Evan Agostini/Getty Images.
Britney Spears during 2002 MTV Video Music Awards - Arrivals at Radio City Music Hall in New York City, New York, United States. (Photo by Jeff Kravitz/FilmMagic)
NEW YORK - NOVEMBER 18: Singer Britney Spears appears on stage during 'Spanking New Music Week' on MTV Total Request Live at the MTV Times Square Studios November 18, 2003 in New York City. (Photo by Mark Mainz/Getty Images)
Britney Spears (Photo by Dimitrios Kambouris/WireImage)
Britney Spears, winner of Hot Dance Sales Single of the Year for 'Me Against the Music' (Photo by J. Merritt/FilmMagic)
LONDON - APRIL 26: (UK NEWSPAPERS OUT) Pop star Britney Spears plays first night of her 'UK Onyx Hotel Tour 2004' at Wembley Arena on April 26, 2004 in London. The tour is her first UK tour since 2000, and features her greatest hits alongside tracks from current album In The Zone. (Photo by Getty Images)
Britney Spears promotes the new Pepsi ad at the National Gallery. (Photo by rune hellestad/Corbis via Getty Images)
(EXCLUSIVE, Premium Rates Apply) Britney Spears celebrated the global launch of her fragrance 'curious' from Elizabeth Arden. (Photo by Larry Busacca/WireImage for Elizabeth Arden)
Britney Spears during Britney Spears Sighting In New York City - November 7, 2006 at Rockafeller Center in New York City, New York, United States. (Photo by James Devaney/WireImage)
(EXCLUSIVE, Premium Rates Apply) Britney Spears at Pink by Victoria?s Secret *EXCLUSIVE* (Photo by Alexandra Wyman/WireImage for Primary Action)
(EXCLUSIVE, Premium Rates Apply) Britney Spears **EXCLUSIVE** (Photo by Kevin Mazur/WireImage)
LOS ANGELES, CA - DECEMBER 01: Singer Britney Spears attends the Scandinavian Mansion of Style held on December 1, 2007 in Los Angeles, California. (Photo by Mark Sullivan/WireImage)
TO GO WITH AFP YEARENDER GERMANY FILES - Performer Britney Spears looks out the window of her car as she awaits a decision by sheriff's deputies as to where she should park, 26 October 2007 outside Family Court in Los Angeles, California, where she was due for a hearing regarding the custody of her children. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
LAS VEGAS - SEPTEMBER 09: Singer Britney Spears performs during the 2007 MTV Video Music Awards at The Palms Hotel and Casino on September 9, 2007 in Las Vegas, Nevada. (Photo by John Shearer/WireImage)
Britney Spears (Photo by Todd Williamson/FilmMagic)
Britney Spears accepts the award for Best Pop Video for "Piece of Me" at the 2008 MTV Video Music Awards in Los Angeles September 7, 2008. REUTERS/Mario Anzuoni (UNITED STATES)
Britney Spears arrives at the Teen Choice 2009 Awards taping in Los Angeles, California August 9, 2009. REUTERS/Fred Prouser (UNITED STATES ENTERTAINMENT)
NEILL J SCHUTZER/�2010 RAMEY PHOTO Los Angeles, California, November 28, 2010 Britney Spears arrives at LAX with her bodyguards and her sons, back from Thanksgiving with her family back east. NJS (Photo by Philip Ramey/Corbis via Getty Images)
LOS ANGELES, CA - JANUARY 31: Singer Britney Spears arrives at the 52nd Annual GRAMMY Awards held at Staples Center on January 31, 2010 in Los Angeles, California. (Photo by Christopher Polk/Getty Images)
Singer Britney Spears smiles on stage at the 2011 Wango Tango concert in Los Angeles May 14, 2011. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)
LOS ANGELES, CA - AUGUST 28: Britney Spears attends the 2011 MTV Video Music Awards at the Nokia Theatre LA. Live on August 28, 2011 in Los Angeles, CA. (Photo by Anthony Harvey/Getty Images)
Britney Spears attends 102.7 KIIS FM's Wango Tango concert at Staples Center on May 14, 2011 in Los Angeles, California.
LOS ANGELES, CA - DECEMBER 19: Singer/Judge Britney Spears arrives at Fox's 'The X Factor' Season Finale Night 1 at CBS Television City at CBS Studios on December 19, 2012 in Los Angeles, California. (Photo by Jeffrey Mayer/WireImage)
Singer Britney Spears poses at the premiere of "The Smurfs 2" at the Regency Village theatre in Los Angeles, California July 28, 2013. The movie opens in the U.S. on July 31. Speaks performed the song "Ooh La La" from the movie. REUTERS/Mario Anzuoni (UNITED STATES - Tags: ENTERTAINMENT)
LAS VEGAS, NV - SEPTEMBER 21: Entertainer Britney Spears attends the iHeartRadio Music Festival at the MGM Grand Garden Arena on September 21, 2013 in Las Vegas, Nevada. (Photo by Jason Kempin/Getty Images for Clear Channel)
Pop star Britney Spears arrives at the 2014 Elton John AIDS Foundation Oscar Party in West Hollywood, California March 2, 2014. REUTERS/Gus Ruelas (UNITED STATES TAGS: ENTERTAINMENT) (OSCARS-PARTIES)
Singer Britney Spears waves during the launch of her lingerie collection 'The Intimate Britney Spears Spring/Summer 2015', at a shopping mall in Oberhausen September 25, 2014. REUTERS/Ina Fassbender (GERMANY - Tags: FASHION ENTERTAINMENT)
LAS VEGAS, NV - NOVEMBER 21: Singer Britney Spears arrives at a Christmas tree-lighting ceremony at The LINQ Promenade on November 21, 2015 in Las Vegas, Nevada. (Photo by David Becker/Getty Images)
LOS ANGELES, CA - AUGUST 30: Singer Britney Spears arrives at the 2015 MTV Video Music Awards at Microsoft Theater on August 30, 2015 in Los Angeles, California. (Photo by Gregg DeGuire/WireImage)
Singer Britney Spears poses backstage with her Choice Style Icon award at the 2015 Teen Choice Awards in Los Angeles, California, United States August 16, 2015. REUTERS/Danny Moloshok
Singer Britney Spears arrives at the 2016 MTV Video Music Awards in New York, U.S., August 28, 2016. REUTERS/Eduardo Munoz
LOS ANGELES , CA - DECEMBER 02: Britney Spears performs on stage during the 102.7 KIIS FM's Jingle Ball 2016 on December 02, 2016 in Los Angeles, California. (Photo by JB Lacroix/WireImage)
BEVERLY HILLS, CA - FEBRUARY 11: Singer Britney Spears attends the 2017 Pre-GRAMMY Gala And Salute to Industry Icons Honoring Debra Lee at The Beverly Hilton Hotel on February 11, 2017 in Beverly Hills, California. (Photo by Jeff Kravitz/FilmMagic)
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