Also features a shirtless Sean O'Pry
Katy Perry shared a tribute to the man she credited with her signature look
As usual she turns out the party.
Should Katy Perry, Rihanna, or Zendaya take home the honor?
How Katy Perry, Johnny Weir, and Lindsay Lohan made this a camp spectacle for the ages
Mover over Perry, the scruffy Inside Llewyn Davis star will take it from here
Get ready to memorize this gleeful ditty and then urge someone you love to 'let me get you in your birthday suit...'
Plus: 'Hugh Jackman Is Straight' and Other Hot Gossip Tidbits