1 of 31
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)
Perry pays tribute to Britney Spears with Riff Raff at the MTV Video Music Awards on Aug. 24, 2014. Getty
2 of 31
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)
Perry looks like Grandma’s drapes at a pre-Grammy event on Jan. 27, 2014, in Los Angeles. Getty
3 of 31
LOS ANGELES, CA - NOVEMBER 24: Singer Katy Perry performs onstage during the 2013 American Music Awards at Nokia Theatre L.A. Live on November 24, 2013 in Los Angeles, California. (Photo by Kevin Winter/Getty Images)
A somewhat culturally confused Perry performs at the American Music Awards on Nov. 24, 2013. Getty
4 of 31
NEW YORK, NY - AUGUST 25: (EXCLUSIVE COVERAGE) Musician Katy Perry performs during the 2013 MTV Video Music Awards in Empire-Fulton Ferry Park on August 25, 2013 in the Brooklyn borough of New York City. (Photo by Mike Coppola/Getty Images for MTV)
Perry performs at the MTV Video Music Awards on Aug. 25, 2013. Getty
5 of 31
Singer Katy Perry arrives at the MTV Video Music Awards August 25, 2013 at the Barclays Center in New York. AFP PHOTO/Emmanuel DUNAND (Photo credit should read EMMANUEL DUNAND/AFP/Getty Images)
Perry takes a walk on the wild side at the MTV Video Music Awards on Aug. 25, 2013. Emmanuel Dunand / AFP / Getty
6 of 31
NEW YORK, NY - MAY 06: Katy Perry attends the Costume Institute Gala for the "PUNK: Chaos to Couture" exhibition at the Metropolitan Museum of Art on May 6, 2013 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
Perry tries to combine promotion for her Killer Queen fragrance and the punk theme at the Met Gala on May 6, 2013, in New York. Getty
7 of 31
THERMAL, CA - APRIL 13: Singer Katy Perry attends LACOSTE L!VE Desert Pool Party In Celebration Of Coachella on April 13, 2013 in Thermal, California. (Photo by Jonathan Leibson/Getty Images for LACOSTE)
Perry hangs out at a Coachella party on April 13, 2013, in Thermal, Calif. Getty
8 of 31
LOS ANGELES, CA - JUNE 12: Recording artist Katy Perry arrives at City Of Hope Honors Clear Channel CEO Bob Pittman With Spirit Of Life Award - Red Carpet at The Geffen Contemporary at MOCA on June 12, 2012 in Los Angeles, California. (Photo by Michael Kovac/Getty Images for City of Hope)
Perry goes flapper-chic on June 12, 2012. Getty
9 of 31
CENTURY CITY, CA - MAY 10: Singer Katy Perry arrives at the NARM Music Biz Awards dinner party held at the Hyatt Regency Century Plaza on May 10, 2012 in Century City, California. (Photo by Jason Merritt/Getty Images)
Perry goes goth at the NARM Music Biz Awards on May 10, 2012. Getty
10 of 31
LOS ANGELES, CA - FEBRUARY 10: Singer Katy Perry arrives at the 2012 MusiCares Person of the Year Tribute to Paul McCartney held at the Los Angeles Convention Center on February 10, 2012 in Los Angeles, California. (Photo by Kevin Winter/Getty Images For The Recording Academy)
Perry salutes Paul McCartney with petals on Feb. 10, 2012, in Los Angeles. Getty
11 of 31
LONDON, ENGLAND - JULY 03: Katy Perry attends the European Premiere of 'Katy Perry Part Of Me' at Empire Leicester Square on July 3, 2012 in London, England. (Photo by Ian Gavan/Getty Images)
At the London premiere of “Katy Perry: Part of Me” on July 3, 2012. Getty
12 of 31
LOS ANGELES, CA - MARCH 31: Singer Katy Perry attends Nickelodeon's 25th Annual Kids' Choice Awards held at Galen Center on March 31, 2012 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
Perry gets ready to get slimed at the Nickelodeon Kids’ Choice Awards on March 31, 2012. Getty
13 of 31
LOS ANGELES, CA - AUGUST 28: Singer Katy Perry, winner of the Video of the Year Award for 'Firework", Best Collaboration Award (featuring Kanye West) for "E.T." and Best Special Effects in a Video for "E.T." poses in the press room during the 2011 MTV Video Music Awards at Nokia Theatre L.A. LIVE on August 28, 2011 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)
Perry makes a series of quick changes at the MTV Video Music Awards on Aug. 28, 2011. Getty
14 of 31
BELFAST, NORTHERN IRELAND - NOVEMBER 06: Singer Katy Perry attends the MTV Europe Music Awards 2011 at the Odyssey Arena on November 6, 2011 in Belfast, Northern Ireland. (Photo by Ian Gavan/Getty Images)
Perry goes rockabilly on Nov. 6, 2011, at the MTV Europe Music Awards in Belfast, Northern Ireland. Getty
15 of 31
LOS ANGELES, CA - FEBRUARY 13: Singer Katy Perry arrives at The 53rd Annual GRAMMY Awards held at Staples Center on February 13, 2011 in Los Angeles, California. (Photo by Jason Merritt/Getty Images) *** Local Caption *** Katy Perry
Perry is heavenly at the Grammys on Feb. 13, 2011. Getty
16 of 31
NEW YORK - MAY 03: Singer Katy Perry attends the Costume Institute Gala Benefit to celebrate the opening of the "American Woman: Fashioning a National Identity" exhibition at The Metropolitan Museum of Art on May 3, 2010 in New York City. (Photo by Larry Busacca/Getty Images) *** Local Caption *** Katy Perry 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)
Katy Perry lights up the room on May 3, 2010, at the Met Gala in New York, and on Nov. 7, 2014, in Perth, Australia. Getty
17 of 31
LOS ANGELES, CA - NOVEMBER 30: Singer Katy Perry performs onstage at the GRAMMY Nominations Concert Live! at the Club Nokia on November 30, 2010 in Los Angeles, California. (Photo by Kevin Winter/Getty Images) *** Local Caption *** Katy Perry
Perry channels rival Lady Gaga on Nov. 30, 2010, at the Grammy nominations concert in Los Angeles. Getty
18 of 31
NEW YORK - NOVEMBER 10: Singer Katy Perry performs during the 2010 Victoria's Secret Fashion Show at the Lexington Avenue Armory on November 10, 2010 in New York City. (Photo by Theo Wargo/Getty Images) *** Local Caption *** Katy Perry
Perry tries competing with model cleavage at the Victoria’s Secret Fashion Show on Nov. 10, 2010. Getty
19 of 31
Perry is a hot ticket on Nov. 7, 2010 at the MTV Europe Music Awards in Madrid.
Perry is a hot ticket on Nov. 7, 2010, at the MTV Europe Music Awards in Madrid. Getty
20 of 31
MIRAMAR, CA - DECEMBER 03: Singer Katy Perry performs onstage during "VH1 Divas Salute the Troops" presented by the USO at the MCAS Miramar on December 3, 2010 in Miramar, California. "VH1 Divas Salute the Troops" concert event will be televised on Sunday, December 5 at 9:00 PM ET/PT on VH1. (Photo by Kevin Winter/Getty Images for VH1) *** Local Caption *** Katy Perry
Perry does her best Jessica Rabbit at VH1 Divas Live on Dec. 3, 2010, in Miramar, Calif. Getty
21 of 31
LOS ANGELES, CA - DECEMBER 05: Katy Perry performs at the KIIS FM's Jingle Ball 2010 on December 5, 2010 in Los Angeles, California. (Photo by Noel Vasquez/Getty Images) *** Local Caption *** Katy Perry
Perry gets festive on Dec. 5 and Dec. 10, 2010. Getty
22 of 31
US singer Katy Perry performs during the final of the TV-show "Germany's Next Top Model" on June 10, 2010 at the Lanxess-Arena in Cologne, western Germany. The competition is hosted by German supermodel Heidi Klum (not in picture). AFP PHOTO / PATRIK STOLLARZ (Photo credit should read PATRIK STOLLARZ/AFP/Getty Images) US singer Katy Perry gestures as she poses for photographs before performing at Postbahnhof arena in Berlin, September 5, 2010. AFP PHOTO / ODD ANDERSEN (Photo credit should read ODD ANDERSEN/AFP/Getty Images) NEW YORK - JUNE 15: Singer Katy Perry performs at the world premiere of Volkswagen's new Jetta compact sedan at Times Square on June 15, 2010 in New York City. (Photo by Jemal Countess/Getty Images) *** Local Caption *** Katy Perry
In 2010, Perry loved latex. Patrik Stollarz / Odd Anderson / AFP / Getty
23 of 31
Katy Perry performs her hit song "I Kissed a Girl" during the 51st annual Grammy awards held at the Staples Center in Los Angeles on February 8, 2009. AFP PHOTO/Robyn BECK (Photo credit should read ROBYN BECK/AFP/Getty Images)
Perry is fruity on “Today” on Aug. 29, 2008, in New York and on Feb. 8, 2009, at the Grammys in Los Angeles. Getty Robyn Beck / AFP
24 of 31
Singer Katy Perry performs on Hollywood Boulevard before the premiere of her film "Katy Perry: Part Of Me" at Grauman's Chinese Theatre in Hollywood, California, on June 26, 2012. AFP PHOTO / ROBYN BECK (Photo credit should read ROBYN BECK/AFP/GettyImages)
Perry promotes her film “Katy Perry: Part of Me” in Hollywood on June 26, 2012. Robyn Beck / AFP / Getty
25 of 31
BERLIN - NOVEMBER 05: Host Katy Perry performs during the 2009 MTV Europe Music Awards held at the O2 Arena on November 5, 2009 in Berlin, Germany. (Photo by Dave M. Benett/Getty Images) *** Local Caption *** Katy Perry
Perry sports missing pieces at the MTV Europe Music Awards on Nov. 5, 2009, in Berlin. Getty
26 of 31
LONDON - FEBRUARY 18: Singer Katy Perry arrives at the Brit Awards 2009 at Earls Court on February 18, 2009 in London, England. (Photo by Gareth Cattermole/Getty Images) *** Local Caption *** Katy Perry
Perry salutes Hello Kitty at the Brit Awards on Feb. 18, 2009, in London. Getty
27 of 31
LIVERPOOL, UNITED KINGDOM - NOVEMBER 06: Katy Perry attends the 2008 MTV Europe Music Awards at the Liverpool Echo Arena on November 6, 2008 in London, England. (Photo by Mike Marsland/Getty Images)
Perry’s clothing has character on Nov. 6, 2008, at the MTV Europe Music Awards in Liverpool, UK. Getty
28 of 31
LIVERPOOL, UNITED KINGDOM - NOVEMBER 06: Katy Perry performs during the 2008 MTV Europe Music Awards held at at the Echo Arena on November 6, 2008 in Liverpool, England. (Photo by Mike Marsland/Getty Images)
Perry performs as a circus in Liverpool, UK on Nov. 6, 2008, at the MTV Europe Music Awards. Getty
29 of 31
LIVERPOOL, UNITED KINGDOM - NOVEMBER 06: Katy Perry Wins Best New Act during the 2008 MTV Europe Music Awards held at at the Echo Arena on November 6, 2008 in Liverpool, England. (Photo by Mike Marsland/Getty Images)
Perry endorses then-candidate Barack Obama at the MTV Europe Music Awards on Nov. 6, 2008. Getty
30 of 31
LIVERPOOL, UNITED KINGDOM - NOVEMBER 06: ***EXCLUSIVE ACCESS*** Katy Perry poses in the Winners Room at the 2008 MTV Europe Music Awards held at at the Echo Arena on November 6, 2008 in Liverpool, England. (Photo by Gareth Cattermole/Getty Images)
Perry wants the best of both worlds at the MTV Europe Music Awards in Liverpool, UK on Nov. 6, 2008. Getty
31 of 31
LIVERPOOL, UNITED KINGDOM - NOVEMBER 06: Katy Perry onstage at the MTV Europe Music Awards, held at the Echo Arena on November 6, 2008 in Liverpool, England. (Photo by Getty Images/Getty Images)
Perry tackles the MTV Europe Music Awards on Nov. 6, 2008, in Liverpool, UK. Getty