We can't feel that sorry for People's World's Most Beautiful Woman, though!

Gwyneth Paltrow ditched her undies when she walked the red carpet in a sheer Antonio Berardi dress at the Iron Man 3 premiere, and the actress confessed she was "humiliated" at the all the bad press her ensemble received during an appearance on Ellen today.

"I kind of had a disaster. I was doing a show and I changed there and I went 'I couldn't wear underwear.' I don't think I can tell this story on TV. Well, let's just say everyone went scrambling for a razor," she joked to the talk show host.

TMI!