Gwyneth Paltrow says she will never attend the Costume Institute Gala at the Metropolitan Museum of Art in the future. Credit: Randy Brooke/

A nation mourns. Gwyneth Paltrow's appearance at the star-packed Met Gala in NYC on Monday, May 6 was apparently her very last. "I'm never going again," Paltrow, 40, told USA Today of the Costume Institute Ball in NYC, where she wore a ladylike, modest Valentino Haute Couture Corolle gown.

The Iron Man 3 star's complaints? "It was so un-fun. It was boiling," she explained. "I did not enjoy it at all."

Paltrow, whose friends Beyonce and Madonna also attended fashion's most glittery night, also explained why she and husband Chris Martin hit the bash separately, and avoided joint photographs together -- telling the site they prefer to keep their 10-year marriage as "private" as possible.

The Oscar-winning actress was a little more chipper speaking about the bash with Entertainment Weekly, heaping praise on supermodel Miranda Kerr, gushing that Kerr's sexy Michael Kors dress was "really beautiful. It was a little punk-y. She's just so pretty, it's abnormal." The blonde even asked the Victoria's Secret catwalker "'Is it weird to be that pretty?' And she was like, 'No.'"