The 39-year-old model wore a gold and silver Julien Macdonald gown with sheer panelled side cut-outs at the Pacific Design Centre in West Hollywood.
Britney Spears debuted her chestnut coloured hair and wore a plunging black sequinned dress as she graced the red carpet at the star-studded Academy Award bash.
Other guests included a bespectacled Chris Brown, Emile Sandé, Dave Grohl, Kim and Kourtney Kardashian and True Blood's Ryan Kwanten, Anna Paquin and Stephen Moyer.
Nicki Minaj, Carmen Electra, Emma Roberts, Harry Potter's Bonnie Wright and Nicole Richie were also in attendance.
See more pictures from Elton John's viewing party here.