Elton John's 2012 Oscars Viewing Party: Celebrities Kim Kardashian, Ryan Kwanten, Heidi Klum, Katy Perry and More

The Hollywood and Highland Center is currently filled to the brim with A-listers, and over at Elton John’s 20th annual AIDS Foundation Academy Awards viewing party in Beverly Hills more stars have gathered to enjoy the festivities. Kim Kardashian wore a black gown with a subtle print and cut-outs, while Katy Perry — still rocking bright blue hair — and Brooklyn Decker both opted for sparkly, embellished dresses. Alessandra Ambrosio and Kourtney Kardashian compared their best accessories: their baby bumps! Heidi Klum chose a short yellow frock for the occasion, and she has also removed her wedding ring since announcing her separation from Seal. It’s not all about the ladies, though — among the handsome, suited-up men are Ryan Kwanten, Chace Crawford and Ian Somerhalder. Click through to see who else was at Elton’s soirée!