Despite the downpour in New York City last night, A-list stars flocked to the red carpet at the Metropolitan Museum of Art for the Costume Institute Gala. “It’s the biggest fashion event of the year,” said Heidi Klum, who admitted getting dressed for an event when you’re pregnant isn’t hard when you have a designer like J. Mendel making a couture gown for you. Other celebs gushed over their exceptional ensembles, as well. “Marc Jacobs designed this and he showed me the sketches and I love it,” Victoria Beckham told In Touch. Renée Zellweger looked like a green goddess in her Carolina Herrera gown. “It’s so elegant and the fit is so comfortable,” she explained to In Touch. The sexy cut of Blake Lively’s Versace gown didn’t stop her from enjoying a tasty treat. “I ate a chicken pot pie right before I came here,” she confessed to In Touch. Jessica Alba opted for a Jason Wu mini, which she described to In Touch as “a fresh take on an evening gown.” And while the proud mama to baby Honor was happy showing off her designer duds, she was also excited to spend time with her man, Cash Warren. “It’s an official date night with my husband,” she revealed to In Touch. From gorgeous golds to beautiful blues, the stars looked stunning last night — minus a few fashion mishaps, of course, like Leighton Meester and Madonna's.