Katy Perry confirms 'Mean Girls' tweet was aimed at Taylor Swift

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Katy Perry and Taylor Swift's Former Friendship
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Katy Perry confirms 'Mean Girls' tweet was aimed at Taylor Swift

It was all fun and games for Perry and Swift the at the 52nd Annual GRAMMY Awards in 2010. (Photo by Kevin Mazur/WireImage

Katy Perry addresses whether she'll involve the Taylor Swift feud in her Super Bowl Halftime performance, and reveals that Missy Elliot will be joining her on stage for her performance.

The "Trouble" singer got cozy with her longtime BFF Selena Gomez and Perry at the 2011 American Music Awards. Apparently, gold was the color of the evening. (Photo by Christopher Polk/AMA2011/Getty Images for AMA)

The pair seemed pretty cozy at the show, 2011 American Music Awards despite the fact that they were both up for awards.  (Photo by Jeff Kravitz/AMA2011/FilmMagic)
Talk about a pop powerhouse! Singers Selena Gomez, Nicki Minaj, Katy Perry and Taylor Swift all popped a pose together at the 2011 American Music Awards. (Photo by Lester Cohen/AMA2011/WireImage)
It's all about happy faces. (Photo by Lester Cohen/AMA2011/WireImage)
The duo's friendship stretched all the way back to the 2009 GRAMMY Salute To Industry Icons honoring Clive Davis at the Beverly Hilton Hotel. (Photo by Larry Busacca/WireImage)
Back in 2009, Kelly Clarkson and Miley Cyrus were also a part of the duo's inner circle. (Photo by Kevin Mazur/WireImage)
Smile for the cameras! Swift, Perry and Cyrus looked like they had a blast together at the 2008 MTV Video Music Awards. (Photo by Jeff Kravitz/FilmMagic)
Perry pulled in the "Tim McGraw" singer and the former Disney princess in for a squeeze at the 2008 MTV Video Music Awards. (Photo by Kevin Mazur/WireImage)
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LOS ANGELES, CA - NOVEMBER 20: Taylor Swift and Katy Perry arrive at the 2011 American Music Awards at the Nokia Theatre L.A. LIVE on November 20, 2011 in Los Angeles, California. (Photo by Jeff Kravitz/AMA2011/FilmMagic)
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Katy Perry is finally copping to that cryptic Mean Girls tweet she sent out that everyone assumed was about Taylor Swift. Turns out, everyone was right.

Back in September, the pop star tweeted: "Watch out for the Regina George in sheep's clothing..."

Regina George being Rachel McAdams' snobby, popular girl character in the hit 2004 teen comedy.

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This tweet seemed to be in reaction to Swift's comments made to Rolling Stonemagazine about a fellow female singer that, though she didn't identify, she claimed had done her wrong. "For years, I was never sure if we were friends or not," Swift, 25, said. "She would come up to me at awards shows and say something and walk away, and I would think, 'Are we friends, or did she just give me the harshest insult of my life?'"

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"​​If somebody is trying to defame my character, you're going to hear about it," Perry, 30, touted to Billboard magazine when asked if her tweet was about the "Shake It Off" singer.

As for her other relationships, the "Roar" singer -- who was married to Russell Brand, reportedly engaged to John Mayer and was most recently romantically connected to Diplo -- admits that she doesn't have all the answers. "There is no handbook," she tells the music publication. "In all my relationships, I've learned how I have to be more careful and that it's not up for public consumption."

Whose side are you on? Team Taylor or Team Katy? Stand by your girl in the comments and tweet #ETnow.

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katy perry - updated 4/12/2015
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Katy Perry confirms 'Mean Girls' tweet was aimed at Taylor Swift
BERMUDA DUNES, CA - APRIL 11: Singer Katy Perry and guests attend Moet Ice Imperial at Moschino's Late Night hosted by Jeremy Scott at Coachella 2015 on April 11, 2015 in Bermuda Dunes, California. (Photo by Angela Weiss/Getty Images for Moet & Chandon)
LA QUINTA, CA - APRIL 11: Musician Caitlin Moe (2nd from Left), Katy Perry (Center) with Mia Moretti and friends at Soho Desert House on April 11, 2015 in La Quinta, California. (Photo by Michael Bezjian/Getty Images for Soho House)
LA QUINTA, CA - APRIL 11: Katy Perry, Mia Moretti, and Janell Shirtcliff attend Soho Desert House on April 11, 2015 in La Quinta, California. (Photo by Michael Bezjian/Getty Images for Soho House)
INDIO, CA - APRIL 11: Singer Katy Perry attends day 2 of the 2015 Coachella Valley Music & Arts Festival (Weekend 1) at the Empire Polo Club on April 11, 2015 in Indio, California. (Photo by Jeff Kravitz/FilmMagic)
Katy Perry arrives at the World Premiere Of "Katy Perry: The Prismatic World Tour" held at The Theatre at Ace Hotel on Thursday, March 26, 2015, in Los Angeles. (Photo by Richard Shotwell/Invision/AP)
RALEIGH, NC - JUNE 22: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at PNC Arena on June 22, 2014 in Raleigh, North Carolina. (Photo by Kevin Mazur/WireImage)
CULVER CITY, CA - APRIL 18: Singers Kacey Musgraves (L) and Katy Perry perform onstage during CMT Crossroads: Katy Perry And Kacey Musgraves at Sony Pictures Studios on April 18, 2014 in Culver City, California. CMT Crossroads: Katy Perry and Kacey Musgraves premireres on CMT June 13th, 2014 at 10pm ET/PT. (Photo by Rick Diamond/Getty Images for CMT)
BELFAST, UNITED KINGDOM - MAY 07: Katy Perry performs on stage on the opening night of her Prismatic World Tour at Odyssey Arena on May 7, 2014 in Belfast, Northern Ireland. (Photo by Christie Goodwin/Getty Images)
NEW YORK, NY - JULY 09: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at Madison Square Garden on July 9, 2014 in New York City. (Photo by Kevin Mazur/WireImage)
IMAGE DISTRIBUTED FOR STAPLES - Global pop star Katy Perry, center, with local teachers, left to right, Todd Simon and Sarah Fuller pose backstage at the Staples Center during Perry's Prismatic World Tour performance on Friday, Sept. 19, 2014, in Los Angeles. Staples teamed up with superstar Katy Perry to "Make Roar Happen" and celebrate and support teachers during the back-to-school season by donating $1 million to DonorsChoose.org, a charity that has helped fund more than 450,000 classroom projects for teachers and impacted more than 11 million students. (Photo by Antonio Pullano/Invision for Staples/AP Images)
PERTH, AUSTRALIA - NOVEMBER 07: Katy Perry performs live at Perth Arena during her Prismatic World Tour on November 7, 2014 in Perth, Australia. (Photo by Paul Kane/Getty Images)
OXFORD, MS - OCTOBER 4: Singer and songwriter Katy Perry watches the action between the Ole Miss Rebels and the Alabama Crimson Tide on October 4, 2014 at Vaught-Hemingway Stadium in Oxford, Mississippi. (Photo by Joe Murphy/Getty Images)
INGLEWOOD, CA - AUGUST 24: Rapper Riff Raff, recording artist Katy Perry, recording artist Sam Smith and singer Charli XCX attend attend the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by MTV/MTV1415/Getty Images for MTV)
INGLEWOOD, CA - AUGUST 24: Rapper Riff Raff (L) and singer Katy Perry attend the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by Jason Merritt/Getty Images for MTV)
INGLEWOOD, CA - AUGUST 24: Katy Perry arrives at the 2014 MTV Video Music Awards at The Forum on August 24, 2014 in Inglewood, California. (Photo by Steve Granitz/WireImage)
Singer Katy Perry performs at a concert in celebration of the Special Olympics on July 31, 2014 in the East Room of the White House in Washington, DC. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/Getty Images)
Singer Katy Perry performs during a a concert commemorating the Special Olympics with U.S. President Barack Obama, not pictured, in the State Dining Room of the White House in Washington, D.C., U.S., on Thursday, July 31, 2014. Founded in 1968 by Eunice Kennedy Shriver, the Special Olympics movement has grown to more than 4.4 million athletes in 170 countries. Photographer: Andrew Harrer/Bloomberg via Getty Images
NEW YORK, NY - JULY 09: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at Madison Square Garden on July 9, 2014 in New York City. (Photo by Kevin Mazur/WireImage)
NEW YORK, NY - JULY 09: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at Madison Square Garden on July 9, 2014 in New York City. (Photo by Kevin Mazur/WireImage)
NEW YORK, NY - JULY 09: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at Madison Square Garden on July 9, 2014 in New York City. (Photo by Kevin Mazur/WireImage)
WASHINGTON, DC - JUNE 24: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at the Verizon Center on June 24, 2014 in Washington, DC. (Photo by Kevin Mazur/WireImage)
WASHINGTON, DC - JUNE 24: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at the Verizon Center on June 24, 2014 in Washington, DC. (Photo by Kevin Mazur/WireImage)
WASHINGTON, DC - JUNE 24: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at the Verizon Center on June 24, 2014 in Washington, DC. (Photo by Kevin Mazur/WireImage)
Singer Katy Perry tosses corn dogs as she shows her displeasure of Alabama being chosen as the favorite over Mississippi during a telecast of ESPN's College GamDay in The Grove at the University of Mississippi prior to their NCAA college football game in Oxford, Miss., Saturday, Oct. 4, 2014. (AP Photo/Rogelio V. Solis)
LAKE BUENA VISTA, FL - JULY 04: In this handout photo provided by Disney Parks, singer Katy Perry poses with Minnie Mouse and Mickey Mouse at Disney's Hollywood Studios at Walt Disney World Resort on July 4, 2014 in Lake Buena Vista, Florida. Katy Perry, who sang the hit song 'Firework,' visited Walt Disney World Resort on U.S. Independence Day during a break in her global 'Prismatic' concert tour. (Photo by Chloe Rice/Disney Parks via Getty Images)
RALEIGH, NC - JUNE 22: (Exclusive Coverage; Editorial Use Only) Katy Perry performs onstage during 'The Prismatic World Tour' at PNC Arena on June 22, 2014 in Raleigh, North Carolina. (Photo by Kevin Mazur/WireImage)
Pop star Katy Perry speaks on June 12, 2014 in Los Angeles, California, where she is teaming up with Staples to 'Make Roar Happen', celebrating and supporting teachers for a philanthropic effort during the back-to-school season. Besides donating $1 million to DonorsChoose.org, Staples will sponsor the North American leg of Katy Perrys Prismatic World Tour, which starts in Raleigh, North Carolina on June 22. AFP PHOTO/Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)
GLASGOW, SCOTLAND - MAY 25: Katy Perry performs live at Radio 1's Big Weekend at Glasgow Green on May 25, 2014 in Glasgow, Scotland. (Photo by Dave J Hogan/Getty Images)
LAS VEGAS, NV - MAY 18: Singer Katy Perry performs via satellite during the 2014 Billboard Music Awards at the MGM Grand Garden Arena on May 18, 2014 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)
BELFAST, UNITED KINGDOM - MAY 07: Katy Perry performs on stage on the opening night of her Prismatic World Tour at Odyssey Arena on May 7, 2014 in Belfast, Northern Ireland. (Photo by Christie Goodwin/Getty Images)
LOS ANGELES, CA - APRIL 22: Singer Katy Perry is seen on April 22, 2014 in Los Angeles, California. (Photo by JMA/Star Max/GC Images)
LOS ANGELES, CA - APRIL 22: Singer Katy Perry is seen on April 22, 2014 in Los Angeles, California. (Photo by JMA/Star Max/GC Images)
LA QUINTA, CA - APRIL 13: Recording Artists Katy Perry and Sam Smith attend Soho Desert House with Bacardi and Spotify Day 3 on April 13, 2014 in La Quinta, California. (Photo by Michael Bezjian/Getty Images for Soho House)
LA QUINTA, CA - APRIL 12: Recording Artist Katy Perry attends the Spotify Brunch at Soho Desert House with Bacardi Day 2n April 12, 2014 in La Quinta, California. (Photo by Michael Bezjian/Getty Images for Soho House)
INDIO, CA - APRIL 12: Singer Katy Perry watches Lorde perform during day 2 of the 2014 Coachella Valley Music & Arts Festival at the Empire Polo Club on April 12, 2014 in Indio, California. (Photo by Frazer Harrison/Getty Images for Coachella)
LOS ANGELES, CA - APRIL 08: Katy Perry attends as Nicole Richie, Rivka Sophia Rossi, Hayden Slater and friends host Marianne Williamson, Independent Candidate for Congress, CA 33 event at Kayne Griffin Corcoran Gallery on April 8, 2014 in Los Angeles, California. (Photo by Tibrina Hobson/Getty Images)
LOS ANGELES, CA - APRIL 08: Katy Perry attends the Congressional candidate Marianne Williamson press event on April 8, 2014 in Los Angeles, California. (Photo by Araya Diaz/WireImage)
LONDON, ENGLAND - APRIL 02: A makeup artist makes finishing touches to a wax figure of Katy Perry as it is unveiled at Madame Tussauds on April 2, 2014 in London, England. (Photo by Tim P. Whitby/Getty Images)
LOS ANGELES, CA - MARCH 29: Katy Perry attends the MOCA 35th anniversary gala celebration at The Geffen Contemporary at MOCA on March 29, 2014 in Los Angeles, California. (Photo by Jason LaVeris/FilmMagic)
American singer Katy Perry poses for photos at the launch of her Prismatic world tour in Sydney On March 4, 2014. Katy has announced that the Prismatic world tour will head to Australia in November 2014 with live performances at concerts in Sydney, Perth, Adelaide, Melbourne and Brisbane. AFP PHOTO / Saeed Khan (Photo credit should read SAEED KHAN/AFP/Getty Images)
SYDNEY, AUSTRALIA - MARCH 04: Katy Perry poses for media at Telstra HQ, George Street on March 4, 2014 in Sydney, Australia. (Photo by Brendon Thorne/Getty Images)
SAITAMA, JAPAN - MARCH 02: Singer Katy Perry attends U-Express Live 2014 press conference at Saitama Super Arena on March 2, 2014 in Saitama, Japan. (Photo by Jun Sato/WireImage)
SAITAMA, JAPAN - MARCH 02: Singer Katy Perry attends U-Express Live 2014 press conference at Saitama Super Arena on March 2, 2014 in Saitama, Japan. (Photo by Jun Sato/WireImage)
NARITA, JAPAN - MARCH 01: Singer Katy Perry is seen upon arrival at Narita International Airport on March 1, 2014 in Narita, Japan. (Photo by Jun Sato/GC Images)
NARITA, JAPAN - MARCH 01: Singer Katy Perry is seen upon arrival at Narita International Airport on March 1, 2014 in Narita, Japan. (Photo by Jun Sato/GC Images)
MILAN, ITALY - FEBRUARY 20: Katy Perry steps up the runway before the Moschino show as a part of Milan Fashion Week Womenswear Autumn/Winter on February 20, 2014 in Milan, Italy. (Photo by Antonio de Moraes Barros Filho/WireImage)
MILAN, ITALY - FEBRUARY 20: Katy Perry steps up the runway before the Moschino show as a part of Milan Fashion Week Womenswear Autumn/Winter on February 20, 2014 in Milan, Italy. (Photo by Antonio de Moraes Barros Filho/WireImage)
LONDON, ENGLAND - FEBRUARY 19: Katy Perry onstage at The BRIT Awards 2014 at 02 Arena on February 19, 2014 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 19: Katy Perry performs at The BRIT Awards 2014 at 02 Arena on February 19, 2014 in London, England. (Photo by Karwai Tang/WireImage)
LONDON, ENGLAND - FEBRUARY 19: Katy Perry performs at The BRIT Awards 2014 at 02 Arena on February 19, 2014 in London, England. (Photo by David M. Benett/Getty Images)
LONDON, ENGLAND - FEBRUARY 18: Katy Perry attends the Elle Style Awards 2014 at One Embankment on February 18, 2014 in London, England. (Photo by Mike Marsland/WireImage)
LONDON, UNITED KINGDOM - FEBRUARY 18: Katy Perry sighting on February 18, 2014 in London, England. (Photo by Alan Chapman/FilmMagic)
LONDON, ENGLAND - FEBRUARY 18: Katy Perry, winner of Woman of the Year, poses in the winners room at the Elle Style Awards 2014 at One Embankment on February 18, 2014 in London, England. (Photo by David M. Benett/Getty Images)
CULVER CITY, CA - JANUARY 28: (L-R) Actress Gwyneth Paltrow and recording artists Katy Perry and John Mayer attend Hollywood Stands Up To Cancer Event with contributors American Cancer Society and Bristol Myers Squibb hosted by Jim Toth and Reese Witherspoon and the Entertainment Industry Foundation on Tuesday, January 28, 2014 in Culver City, California. (Photo by Kevin Mazur/Getty Images for Entertainment Industry Foundation)
CULVER CITY, CA - JANUARY 28: Recording artist Katy Perry (L) and actress Selena Gomez attend Hollywood Stands Up To Cancer Event with contributors American Cancer Society and Bristol Myers Squibb hosted by Jim Toth and Reese Witherspoon and the Entertainment Industry Foundation on Tuesday, January 28, 2014 in Culver City, California. (Photo by Stefanie Keenan/Getty Images for Entertainment Industry Foundation)
CULVER CITY, CA - JANUARY 28: Recording artist Katy Perry attends Hollywood Stands Up To Cancer Event with contributors American Cancer Society and Bristol Myers Squibb hosted by Jim Toth and Reese Witherspoon and the Entertainment Industry Foundation on Tuesday, January 28, 2014 in Culver City, California. (Photo by Stefanie Keenan/Getty Images for Entertainment Industry Foundation)
LOS ANGELES - JANUARY 27: To commemorate the 50th anniversary of one of the most historic moments in music and television, The Recording Academy, AEG Ehrlich Ventures and CBS presents 'The Night That Changed America: A GRAMMY Salute To The BEATLES.' The primetime entertainment special celebrates the remarkable legacy of the seven-time GRAMMY Award-winning group and their groundbreaking first appearance on 'The Ed Sullivan Show.' The two-hour show broadcasts exactly 50 years to the day, date and time of the original event, Sunday, Feb. 9 (8:00-10:00 PM, ET/PT) on the CBS Television Network. Pictured L-R: Katy Perry and Steve Lukather (Photo by Cliff Lipson/CBS via Getty Images)
LOS ANGELES, CA - JANUARY 27: Recording artist Katy Perry attends 'The Night That Changed America: A GRAMMY Salute To The Beatles' at the Los Angeles Convention Center on January 27, 2014 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)
LOS ANGELES, CA - JANUARY 26: Singer Katy Perry arrives at the 56th GRAMMY Awards at Staples Center on January 26, 2014 in Los Angeles, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - JANUARY 26: Singer Katy Perry arrives at the Universal Music Group 2014 Post GRAMMY Party at The Ace Hotel Theater on January 26, 2014 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
LOS ANGELES, CA - JANUARY 26: Singer Katy Perry arrives at the Universal Music Group 2014 Post GRAMMY Party at The Ace Hotel Theater on January 26, 2014 in Los Angeles, California. (Photo by Valerie Macon/Getty Images)
LOS ANGELES, CA - JANUARY 26: Katy Perry performs onstage during the 56th GRAMMY Awards held at Staples Center on January 26, 2014 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
LOS ANGELES, CA - JANUARY 26: Katy Perry performs onstage during the 56th GRAMMY Awards held at Staples Center on January 26, 2014 in Los Angeles, California. (Photo by Michael Tran/FilmMagic)
LOS ANGELES, CA - JANUARY 26: Jason Flom and Katy Perry attend the 56th GRAMMY Awards at Staples Center on January 26, 2014 in Los Angeles, California. (Photo by Kevin Mazur/WireImage)
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