Rihanna rocks the red in cleavage-baring gown at London premiere of 'Valerian'

Another show-stopping look from Rihanna!

The singer/actress stepped out on Monday night for the London premiere of her new film, "Valerian," and her massive red gown once again stole the show at the star-studded event.

SEE ALSO: Definitive proof that Paris Hilton has the best Twitter account of 2017

The "Work" hitmaker donned a billowing red number that hid her fit figure and flaunted her cleavage. The dress' straps appeared to be sliding down either one of her shoulders to accentuate her chest.

Rihanna finished off the look with matching red lipstick and letting her long locks fall down her back.

38 PHOTOS
Rihanna out and about
See Gallery
Rihanna out and about
LONDON, ENGLAND - JULY 24: Rihanna attends the 'Valerian And The City Of A Thousand Planets' European Premiere at Cineworld Leicester Square on July 24, 2017 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - JULY 24: Rihanna attends the European premiere of 'Valerian and The City of a Thousand Planets' at Cineworld London on July 24, 2017 in London, England. (Photo by Dave J Hogan/Dave J Hogan/Getty Images)
HOLLYWOOD, CA - JULY 17: Singer/actress Rihanna arrives at the Los Angeles premiere of 'Valerian and the City of a Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - JUNE 24: Singer Rihanna is seen on June 24, 2017 in Los Angeles, California. (Photo by SMXRF/Star Max/GC Images)
PARIS, FRANCE - JUNE 16: Singer Rihanna attends the 'Young Fashion Designer': LVMH Prize 2017 edition at Fondation Louis Vuitton on June 16, 2017 in Paris, France. (Photo by Marc Piasecki/WireImage)
LOS ANGELES, CA - MAY 31: Rihanna attends Madeworn x Roc96 Pop-Up Event on May 31, 2017 in Los Angeles, California. (Photo by Jerritt Clark/Getty Images)
OAKLAND, CA - JUNE 01: Recording artist Rihanna attends Game 1 of the 2017 NBA Finals at ORACLE Arena on June 1, 2017 in Oakland, California. NOTE TO USER: User expressly acknowledges and agrees that, by downloading and or using this photograph, User is consenting to the terms and conditions of the Getty Images License Agreement. (Photo by Thearon W. Henderson/Getty Images)
NEW YORK, NY - MAY 22: Rihanna attends the 69th annual Parsons benefit at Pier Sixty at Chelsea Piers on May 22, 2017 in New York City. (Photo by Jimi Celeste/Patrick McMullan via Getty Images)
Barbadian singer Rihanna poses as she arrives for the Chopard 'Space' party on the sidelines of the 70th Cannes film festival, on May 19, 2017 in Cannes, southeastern France. / AFP PHOTO / Yann COATSALIOU (Photo credit should read YANN COATSALIOU/AFP/Getty Images)
CANNES, FRANCE - MAY 19: Rihanna attending the Premiere of OKJA at Cannes film Festival on May 19, 2017 in Cannes, France. PHOTOGRAPH BY Peter / 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 Peter / Barcroft Images / Barcroft Media via Getty Images)
Singer Rihana arrives for the first cruise collection by Maria Grazia Chiuri for Dior show in the Upper Las Virgenes Canyon, Calabasas, California, on May 11, 2017. / AFP PHOTO / CHRIS DELMAS (Photo credit should read CHRIS DELMAS/AFP/Getty Images)
NEW YORK, NY - MAY 04: Rihanna seen filming 'Ocean's Eight' on May 4, 2017 in Brooklyn, New York City. (Photo by Robert Kamau/GC Images)
NEW YORK - MAY 02: Rihanna and Richie Akiva seen leaving 1 Oak Night Club after Met Gala 2017 After Party on May 02, 2017 in New York, New York. (Photo by Josiah Kamau/BuzzFoto via Getty Images)
NEW YORK, NY - MAY 01: Rihanna attends the 'Rei Kawakubo/Comme des Garcons: Art Of The In-Between' Costume Institute Gala at the Metropolitan Museum of Art on May 1, 2017 in New York City. (Photo by Karwai Tang/WireImage)
NEW YORK, NY - MAY 01: Rihanna is seen arriving at the Carlyle Hotel to prepare for the 'Rei Kawakubo/Comme des Garcons: Art Of The In-Between' Costume Institute Gala on May 1, 2017 in New York City. (Photo by Roy Rochlin/Getty Images)
Barbadian singer Rihanna acknowledges the audience following Rihanna's Fenty Collection from PUMA women's Fall-Winter 2017-2018 ready-to-wear collection fashion show at the Salle Labrouste' of the Richelieu-Louvois Library (Bibliotheque Nationale de France - National Library of France - BnF) in Paris on March 6, 2017. / AFP PHOTO / ALAIN JOCARD (Photo credit should read ALAIN JOCARD/AFP/Getty Images)
PARIS, FRANCE - MARCH 03: Rihanna attends the Christian Dior show as part of the Paris Fashion Week Womenswear Fall/Winter 2017/2018 on March 3, 2017 in Paris, France. (Photo by Dominique Charriau/WireImage)
CAMBRIDGE, MA - FEBRUARY 28: Pop singer Rihanna speaks after receiving the Harvard Humanitarian of the Year at the Sanders Theater in Cambridge, MA on Feb. 28, 2017. (Photo by Keith Bedford/The Boston Globe via Getty Images)
NEW YORK, NY - FEBRUARY 27: Rihanna seen out in SoHo on February 27, 2017 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - FEBRUARY 07: Rihanna seen out in Manhattan on February 7, 2017 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - JANUARY 24: Sarah Paulson, Rihanna and Sandra Bullock seen at the 'Ocean's Eight' film set in Central Park on January 24, 2017 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - FEBRUARY 07: Rihanna seen out in Manhattan on February 7, 2017 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - DECEMBER 07: Singer Rihanna is seen on December 7, 2016 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - DECEMBER 03: Singer Rihanna arrived at the set of Ocean's Eight in Brooklyn on December 3, 2016 in New York City. (Photo by Raymond Hall/GC Images)
BRIDGETOWN, BARBADOS - NOVEMBER 30: Prince Harry and singer Rihanna attend a Golden Anniversary Spectacular Mega Concert at the Kensington Oval Cricket Ground on day 10 of an official visit to the Caribbean on November 30, 2016 in Bridgetown, Barbados. Prince Harry's visit to The Caribbean marks the 35th Anniversary of Independence in Antigua and Barbuda and the 50th Anniversary of Independence in Barbados and Guyana. (Photo by Chris Jackson/Getty Images)
NEW YORK, NY - NOVEMBER 29: Event honoree Rihanna attends the 30th FN Achievement awards at IAC Headquarters on November 29, 2016 in New York City. (Photo by Gary Gershoff/WireImage)
BATES MOTEL -- 'Marion' Episode 506 -- Pictured: Rihanna as Marion Crane -- (Photo by: Cate Cameron/A&E/Universal Television/NBCU Photo Bank via Getty Images)
NEW YORK, NY - NOVEMBER 08: Singer Rihanna arrived on 'Ocean Eight' set wearing a Hillary Clinton T-shirt on November 8, 2016 in Brooklyn borough of New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - NOVEMBER 07: Sandra Bullock, Cate Blanchett and Rihanna are seen filming 'Ocean's 8' in Central Park on November 7, 2016 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - OCTOBER 20: Rihanna arrives to Socialista New York on October 20, 2016 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - OCTOBER 20: Singer Rihanna is seen on October 20, 2016 in New York City. (Photo by NCP/Star Max/GC Images)
NEW YORK, NY - OCTOBER 18: Rihanna arrives to Nobu Fifty Seven on October 18, 2016 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - OCTOBER 07: Rihanna seen on the streets of Manhattan on October 7, 2016 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - OCTOBER 18: Rihanna is seen in Soho on October 18, 2016 in New York City. (Photo by Alo Ceballos/GC Images)
NEW YORK, NY - OCTOBER 05: Rihanna seen out in Tribeca on October 5, 2016 in New York City. (Photo by Robert Kamau/GC Images)
PARIS, FRANCE - SEPTEMBER 30: Singer Rihanna attends the Christian Dior show as part of the Paris Fashion Week Womenswear Spring/Summer 2017 on September 30, 2016 in Paris, France. (Photo by Stephane Cardinale - Corbis/Corbis via Getty Images)
PARIS, FRANCE - SEPTEMBER 28: Rihanna is seen backstage during FENTY x PUMA by Rihanna at Hotel Salomon de Rothschild on September 28, 2016 in Paris, France. (Photo by Pascal Le Segretain/Getty Images for Fenty x Puma)
HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

The appearance comes just one week after she also celebrated her latest Hollywood stint at the U.S. premiere of "Valerian," also alongside stars like Cara Delevingne. The singer was also the talk of the town at that premiere, rocking a ballerina-inspired pink tulle look with a massive train that she paired with lace-up heels.

Unfortunately for Rihanna and Cara, "Valerian" hasn't performed well at the box office so far. It only earned $17 million during its opening weekend.

See photos from the U.S. premiere of "Valerian" below:

24 PHOTOS
'Valerian' premiere: Red carpet arrivals
See Gallery
'Valerian' premiere: Red carpet arrivals
HOLLYWOOD, CA - JULY 17: Actress/model Cara Delevingne arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
HOLLYWOOD, CA - JULY 17: Actress/model Cara Delevingne arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
HOLLYWOOD, CA - JULY 17: Cara Delevingne arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - JULY 17: Singer Rihanna arrives at the Los Angeles Premiere 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - JULY 17: Singer/actress Rihanna arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
HOLLYWOOD, CA - JULY 17: Kendall Jenner attends the premiere of EuropaCorp and STX Entertainment's 'Valerian and The City of a Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Neilson Barnard/Getty Images)
HOLLYWOOD, CA - JULY 17: Model Kendall Jenner arrives at the Los Angeles Premiere 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - JULY 17: Actress Tara Reid arrives at the Los Angeles Premiere 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - JULY 17: Chris Tucker and son Destin Christopher arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - JULY 17: Actress Kat Graham arrives at the Los Angeles Premiere 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
HOLLYWOOD, CA - JULY 17: Skai Jackson attends the premiere of EuropaCorp and STX Entertainment's 'Valerian and The City of a Thousand Planets' held at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. California.(Photo by Frank Trapper/Corbis via Getty Images)
HOLLYWOOD, CA - JULY 17: Actor Dane DeHaan (L) and Anna Wood arrive at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
HOLLYWOOD, CA - JULY 17: Director/screenwriter Luc Besson arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jeffrey Mayer/WireImage)
HOLLYWOOD, CA - JULY 17: Pauline Hoarau attends the premiere of EuropaCorp and STX Entertainment's 'Valerian and The City of a Thousand Planets' held at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. California.(Photo by Frank Trapper/Corbis via Getty Images)
HOLLYWOOD, CA - JULY 17: Model Poppy Delevingne arrives at the Los Angeles Premiere 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Jon Kopaloff/FilmMagic)
LOS ANGELES, CA - JULY 17: Pauline Hoarau an Sasha Luss pose for a photo with the SKYJET, a collaboration by Lexus and EuropaCorp at the World Premiere of Valerian and The City of a Thousand Planets at the TCL Chinese Theatre on July 17, 2017 in Los Angeles, California. (Photo by Joe Scarnici/Getty Images for Lexus International)
LOS ANGELES, CA - JULY 17: Aymeline Valade poses for a photo with the SKYJET, a collaboration by Lexus and EuropaCorp at the World Premiere of Valerian and The City of a Thousand Planets at the TCL Chinese Theatre on July 17, 2017 in Los Angeles, California. (Photo by Joe Scarnici/Getty Images for Lexus International)
HOLLYWOOD, CA - JULY 17: Alex Hudgens attends the premiere of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Todd Williamson/Getty Images)
HOLLYWOOD, CA - JULY 17: Sasha Lane arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - JULY 17: Meredith Salenger and Patton Oswalt arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - JULY 17: Natalie Morales arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - JULY 17: Draya Michele arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HOLLYWOOD, CA - JULY 17: Harry Shum Jr. arrives at the Premiere Of EuropaCorp And STX Entertainment's 'Valerian And The City Of A Thousand Planets' at TCL Chinese Theatre on July 17, 2017 in Hollywood, California. (Photo by Steve Granitz/WireImage)
HIDE CAPTION
SHOW CAPTION
of
SEE ALL
BACK TO SLIDE

Watch a clip of Rihanna as Bubbles in "Valerian" above.

More from AOL.com:
Country singer Abby Nicole, 25, killed in UTV crash: 'Such a beautiful soul'
Brielle Biermann attacks Kenya Moore in vicious Twitter rant, calls her 'dumb ugly evil b--ch'
Joel McHale's secrets to a long-lasting marriage: 'My wife is my queen'

Read Full Story

Sign up for Entertainment Insider by AOL to get the hottest pop culture news delivered straight to your inbox!

Subscribe to our other newsletters

Emails may offer personalized content or ads. Learn more. You may unsubscribe any time.