"Trevor Live" Honoring Katy Perry And Audi Of America For The Trevor Project - Getty Images & Wonderwall.com's Photo Booth And Green Room

LOS ANGELES, CA - DECEMBER 02: Honoree Katy Perry poses in the Getty Images and Wonderwall.com photo booth and green room at "Trevor Live" honoring Katy Perry and Audi of America for The Trevor Project held at The Hollywood Palladium on December 2, 2012 in Los Angeles, California. (Photo by Mark Davis/Getty Images for Trevor Project)

A Celebration Of Carole King And Her Music To Benefit Paul Newman's The Painted Turtle Camp - Arrivals

HOLLYWOOD, CA - DECEMBER 04: Singer Katy Perry attends a celebration of Carole King and her music to benefit Paul Newman's The Painted Turtle Camp at the Dolby Theatre on December 4, 2012 in Hollywood, California. (Photo by Jason Merritt/Getty Images)

39th Annual People's Choice Awards - Backstage And Audience

LOS ANGELES, CA - JANUARY 09: Singer Katy Perry attends the 39th Annual People's Choice Awards at Nokia Theatre L.A. Live on January 9, 2013 in Los Angeles, California. (Photo by Jason Kempin/Getty Images for PCA)

Children Gather For Kid's Inaugural Concert

WASHINGTON, DC - JANUARY 19: The musician Katy Perry sings during the children's concert at the Washington Convention Center to celebrate military families on January 19, 2013 in Washington, DC. The U.S. capital is preparing for the second inauguration of U.S. President Barack Obama, which will take place on January 21. (Photo by Joe Raedle/Getty Images)

Children Gather For Kid's Inaugural Concert

WASHINGTON, DC - JANUARY 19: The musician Katy Perry sings during the children's concert at the Washington Convention Center to celebrate military families on January 19, 2013 in Washington, DC. The U.S. capital is preparing for the second inauguration of U.S. President Barack Obama, which will take place on January 21. (Photo by Joe Raedle/Getty Images)

The 2013 MusiCares Person Of The Year Gala Honoring Bruce Springsteen - Arrivals

LOS ANGELES, CA - FEBRUARY 08: Singer Katy Perry arrives at he 2013 MusiCares Person Of The Year Gala Honoring Bruce Springsteen at Los Angeles Convention Center on February 8, 2013 in Los Angeles, California. (Photo by Jason Kempin/Getty Images)

The 2013 MusiCares Person Of The Year Gala Honoring Bruce Springsteen - Arrivals

LOS ANGELES, CA - FEBRUARY 08: Singer Katy Perry arrives at he 2013 MusiCares Person Of The Year Gala Honoring Bruce Springsteen at Los Angeles Convention Center on February 8, 2013 in Los Angeles, California. (Photo by Jason Kempin/Getty Images)

Clive Davis & The Recording Academy's 2013 Pre-GRAMMY Gala And Salute To Industry Icons Honoring Antonio "L.A." Reid - Arrivals

BEVERLY HILLS, CA - FEBRUARY 09: Singer Katy Perry arrives at Clive Davis & The Recording Academy's 2013 Pre-GRAMMY Gala and Salute to Industry Icons honoring Antonio "L.A." Reid at The Beverly Hilton Hotel on February 9, 2013 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)

Clive Davis & The Recording Academy's 2013 Pre-GRAMMY Gala And Salute To Industry Icons Honoring Antonio "L.A." Reid - Arrivals

BEVERLY HILLS, CA - FEBRUARY 09: Singer Katy Perry arrives at Clive Davis & The Recording Academy's 2013 Pre-GRAMMY Gala and Salute to Industry Icons honoring Antonio "L.A." Reid at The Beverly Hilton Hotel on February 9, 2013 in Beverly Hills, California. (Photo by Jason Merritt/Getty Images)

The 55th Annual GRAMMY Awards - Backstage And Audience

LOS ANGELES, CA - FEBRUARY 10: (L-R) Actress Portia de Rossi, actress Ellen DeGeneres and singer Katy Perry attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Christopher Polk/Getty Images for NARAS)

US-MUSIC-GRAMMY AWARDS-ARRIVALS

Nominee for Best Pop Solo Performance Katy Perry arrives on the red carpet at the Staples Center for the 55th Grammy Awards in Los Angeles, California, February 10, 2013. AFP PHOTO Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

US-MUSIC-GRAMMY AWARDS-ARRIVALS

Nominee for Best Pop Solo Performance Katy Perry arrives on the red carpet at the Staples Center for the 55th Grammy Awards in Los Angeles, California, February 10, 2013. AFP PHOTO Frederic J. BROWN (Photo credit should read FREDERIC J. BROWN/AFP/Getty Images)

The 55th Annual GRAMMY Awards - Arrivals

LOS ANGELES, CA - FEBRUARY 10: Singer Katy Perry arrives at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Jason Merritt/Getty Images)

The 55th Annual GRAMMY Awards - Show

LOS ANGELES, CA - FEBRUARY 10: LOS ANGELES, CA - FEBRUARY Recording artist Katy Perry speaks onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)

"The Smurfs" World Premiere - Arrivals

NEW YORK, NY - JULY 24: Katy Perry attends the premiere of "The Smurfs" at the Ziegfeld Theater on July 24, 2011 in New York City. (Photo by Andy Kropa/Getty Images)

Katy Perry Fragrance Launch For "Meow!"

LOS ANGELES, CA - DECEMBER 14: Singer Katy Perry makes an appearance at Nordstrom at The Grove at Farmers Market to launch her new fragrance "Meow!" at The Grove on December 14, 2011 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images)

Nickelodeon's 25th Annual Kids' Choice Awards - Red Carpet

LOS ANGELES, CA - MARCH 31: Singer Katy Perry arrives at Nickelodeon's 25th Annual Kids' Choice Awards held at Galen Center on March 31, 2012 in Los Angeles, California. (Photo by John Shearer/Getty Images for KCA)

29th Annual ASCAP Pop Music Awards - Arrivals

HOLLYWOOD, CA - APRIL 18: Siinger Katy Perry arrives at the ASCAP POP Music Awards at the Hollywood Renaissance Hotel on April 18, 2012 in Hollywood, California. (Photo by John M. Heller/Getty Images)

Premiere Of Paramount Insurge's "Katy Perry: Part Of Me" - Performance

HOLLYWOOD, CA - JUNE 26: Singer Katy Perry performs at the first-ever Pepsi/Billboard Summer Beats special live performance for "Katy Perry: Part Of Me" at Grauman's Chinese Theatre on June 26, 2012 in Hollywood, California. "Katy Perry: Part Of Me" will be released by Paramount's Insurge Pictures on July 5, 2012. (Photo by Kevin Winter/Getty Images)

Premiere Of Paramount Insurge's "Katy Perry: Part Of Me" - Arrivals

HOLLYWOOD, CA - JUNE 26: Singer Katy Perry arrives at the premiere of "Katy Perry: Part Of Me" held at Grauman's Chinese Theatre on June 26, 2012 in Hollywood, California. The premiere also included a special live performance by Katy for the first-ever Pepsi/Billboard Summer Beats series. "Katy Perry: Part Of Me" will be released by Paramount's Insurge Pictures on July 5, 2012. (Photo by Jason Merritt/Getty Images)

Premiere Of Paramount Insurge's "Katy Perry: Part Of Me" - Arrivals

HOLLYWOOD, CA - JUNE 26: Singer Katy Perry arrives at the premiere of "Katy Perry: Part Of Me" held at Grauman's Chinese Theatre on June 26, 2012 in Hollywood, California. The premiere also included a special live performance by Katy for the first-ever Pepsi/Billboard Summer Beats series. "Katy Perry: Part Of Me" will be released by Paramount's Insurge Pictures on July 5, 2012. (Photo by Jason Merritt/Getty Images)

"Katy Perry: Part Of Me" Australian Premiere

SYDNEY, AUSTRALIA - JUNE 30: Katy Perry arrives at the "Katy Perry: Part Of Me" Australian Premiere on June 30, 2012 in Sydney, Australia. (Photo by Brendon Thorne/Getty Images)

"Katy Perry: Part Of Me" Australian Premiere

SYDNEY, AUSTRALIA - JUNE 30: Katy Perry arrives at the "Katy Perry: Part Of Me" Australian Premiere on June 30, 2012 in Sydney, Australia. (Photo by Brendon Thorne/Getty Images)

Katy Perry: Part Of Me 3D - European Premiere

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)

Katy Perry: Part Of Me 3D - European Premiere

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)

2012 MTV Video Music Awards - Red Carpet

LOS ANGELES, CA - SEPTEMBER 06: Singer Katy Perry arrives at the 2012 MTV Video Music Awards at Staples Center on September 6, 2012 in Los Angeles, California. (Photo by Christopher Polk/Getty Images)

2012 MTV Video Music Awards - Arrivals

LOS ANGELES, CA - SEPTEMBER 06: Singer Katy Perry arrives at the 2012 MTV Video Music Awards at Staples Center on September 6, 2012 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images)

amfAR's Inspiration Gala Los Angeles - Inside

LOS ANGELES, CA - OCTOBER 11: Singer Katy Perry performs onstage at amfAR's Inspiration Gala at Milk Studios on October 11, 2012 in Los Angeles, California. (Photo by Frazer Harrison/Getty Images for amfAR)

Comedy Central's Night Of Too Many Stars: America Comes Together For Autism Programs - Red Carpet

NEW YORK, NY - OCTOBER 13: Singer Katy Perry attends Comedy Central's night of too many stars: America comes together for autism programs at The Beacon Theatre on October 13, 2012 in New York City. (Photo by Dimitrios Kambouris/Getty Images)

Comedy Central's Night Of Too Many Stars: America Comes Together For Autism Programs - Arrivals

NEW YORK, NY - OCTOBER 13: Singer Katy Perry attends Comedy Central's night of too many stars: America comes together for autism programs at The Beacon Theatre on October 13, 2012 in New York City. (Photo by Mike Coppola/Getty Images)