Katy Perry at the 54th Annual Grammy Awards at the Staples Centre in Los Angeles, CA on February 12, 2012.

Katy Perry arrives on the Red Carpet at the 2010 MTV Movie Awards at Gibson Amphitheatre in Universal City, California on June 6, 2010.

Katy Perry at the 20th Annual Elton John AIDS Foundation Academy Awards Viewing Party at West Hollywood Park in West Hollywood, CA on February 26, 2012.

Katy Perry at the 51st Annual GRAMMY Awards at Staples Center in Los Angeles, CA on February 8, 2009.

Katy Perry at the Salute To Icons Clive Davis Pre-Grammy Gala at Beverly Hilton Hotel in Beverly Hills, CA on February 7, 2009.

Katy Perry at the 2010 MTV Movie Awards at the Gibson Amphitheatre at Universal Studios in Hollywood on June 6, 2010 in Los Angeles, CA.

Katy Perry at the 53rd Annual Grammy Awards at Staples Center in Los Angeles, CA on February 13, 2011.

Katy Perry at the Nickelodeon’s 23rd Annual Kids’ Choice Awards at UCLA’s Pauley Pavilion in Westwood, CA on March 27, 2010.

Katy Perry at VH1’s 14th Annual Critic’s Choice Awards at Santa Monica Civic Auditorium in Santa Monica, CA in January 8, 2009.

Katy Perry in the press room at the 51st Annual GRAMMY Awards at Staples Center in Los Angeles, CA on February 8, 2009.