Stars walked the red carpet at Elton John AIDS event in Hollywood. Biggest celebrities led by Katy Perry and Miley Cyrus. Other celebs include Kim and Kourtney Kardashian, Vanessa Hudgens, Ashley Tisdale, etc. Katy Perry even spent 50k on cooking lessons! Find the video of the red carpet in the link below. http://www.usmagazine.com/celebrity-...s-bash-2012272