Katy Perry  turns 31 on Sunday! Since breaking onto the scene  in 2008, Katy has never shied away from showing off her best assets and flaunting her famous figure. In celebration of her big day, we've rounded up Katy's sexiest moments, both on and off the stage. See them all now — and rock on, Katy!
Katy's cleavage was front and center on the cover of GQ in February 2014.
Katy Perry  sported a teeny green bikini in Mexico in December 2008.
Katy channeled a sexy sailor at the VH1 Divas Salute the Troops concert in December 2010.
She flaunted her curves at the Kids' Choice Awards in LA in March 2013.
Katy performed onstage during the November 2010 Victoria's Secret Fashion Show in NYC.
She rocked out in a skintight dress in NYC's Times Square in June 2010.
Katy turned heads on stage in Indianapolis, IN, at the DirecTV Super Saturday Night in February 2012.
Katy graced the red carpet in a revealing blue minidress at the MuchMusic Awards in Toronto in June 2010.
Katy performed on Hollywood Boulevard before the premiere of her film, Katy Perry : Part of Me, in June 2012.
Katy went topless for the August 2010 issue of Esquire UK.
Katy showed off her bikini body in Miami in July 2012.
She slipped into a sexy black ensemble for the July 2011 issue of Esquire .
She went black and white for an LA dinner honoring Rihanna  in June 2008.
She posed at the September 2009 MTV Music Awards at NYC's Radio City Music Hall.
Katy donned a sexy Santa Claus costume during the Y100 Jingle Ball in December 2011 in Sunrise, FL.
She stripped down to a black leopard and heels for Maxim's January 2011 issue .
Katy Perry  rocked light pink lingerie for Rolling Stone's August 2010 issue .
Katy showed off her toned legs in Sunrise, FL, while performing for her California Dreams tour in June 2011.
Katy bared her midriff in a Dolce & Gabbana  getup while partying at Coachella in April 2013.
Katy literally lit up during a performance in Raleigh, NC, in June 2014.
Katy slipped into black lingerie for her cover story in the February 2014 issue of GQ.
She wore a leopard leotard for Esquire's July 2011 issue .
In December 2014, Katy's sexy stems were in the spotlight at the NRJ Music Awards in Cannes.
Katy performed on Today in NYC back in August 2010.
Katy got into her bikini to go to a water park outside LA in August 2012.
Katy wore a leopard dress with a thigh-high slit for the MTV VMAs in Brooklyn in August 2013.
She rocked a pink, polka-dot bikini in Miami in June 2011.
She gave a glimpse of her abs at the Kids' Choice Awards in LA in March 2012.
Katy Perry  got patriotic for a children's inaugural concert at the Washington DC Convention Center in January 2013.
She showed off her fit figure in Miami in July 2012.
She put her assets on display at the February 2013 Grammys in LA.
Katy wore a sheer, sparkly dress to the June 2010 MTV Movie Awards.
Katy teamed up with Madonna  for a suggestive spread in the Summer 2014 issue of V Magazine.
Katy put her back into her "Prismatic World Tour" performance in Belfast in May 2014.
Katy showed some skin on the cover of Marie Claire's January 2014 issue.
She stepped onto the red carpet at the September 2008 MTV Music Awards at Paramount Pictures Studio in LA.
Katy writhed on stage in a schoolgirl skirt during her performance at the iHeartRadio Music Festival in Las Vegas in September 2013.
Katy hit the beach in the Bahamas in July 2010 wearing a bikini with red ties.