Had they stepped out together, it might have been too much sexy for the cameras to handle, because both stars were smoldering on the red carpet. Perry wore a cleavage-baring strapless leather style that featured sheer lace running down each side of the gown. Meanwhile, Bloom turned heads in his dapper black tuxedo.
Perry was careful not have cameras catch her with Bloom, but she did pose with a few other celebrities. The "Roar" singer and Girls star Allison Williams, who was celebrating her 28th birthday, hit the carpet together, and Perry was later seen talking to Hart of Dixie actress, Jamie King, inside the event. She also posed for a pic with Lenny Kravitz.
"Celebrating 28 and the formation of the (Sean) Parker Foundation with the most thoughtful birthday enthusiast," Williams captioned a selfie with Perry. "She brought party props to a gala so it would still feel like my birthday. Love you forever @katyperry."