Gwyneth Paltrow has slammed the Met Gala.

The 'Iron Man 3' actress was among a host of stars who attended the Costume Institute Ball in New York on Monday (06.05.13) but insists it will be her last time because she hated every minute of it.

Gwyneth told USA Today: ''I'm never going again. It was so un-fun. It was boiling. It was too crowded. I did not enjoy it at all.''

However, Gwyneth admitted she did enjoy spending time with her fellow celebrities and despite recently being voted the World's Most Beautiful Woman by People magazine, was struck by supermodel Miranda Kerr's beauty.

Se said: ''I was like, 'Is it weird to be that pretty?' And she was like, 'No.'''

Gwyneth, 40, also named the 30-year-old former Victoria's Secret Angel the best-dressed celebrity at the star-studded event.

She said: ''She was wearing a black Michael Kors dress that was sort of like a sparkling bandeau, and her whole stomach was showing.

''It was really beautiful. It was a little punk-y. She's just so pretty, it's abnormal.''