Most of Hollywood turned it out for the Academy Awards, but unfortunately, there are always some who inevitably wind up on the worst dressed list.

So what are the biggest mistakes stars make on the red carpet? TVGuide.com spoke with Fashion Police co-hosts Giuliana Rancic, Brad Goreski, Margaret Cho, NeNe Leakes and Melissa Rivers about their red carpet pet peeves. See what they say in the video above.