Flashes of flesh are popping up all over the red carpet in the form of cut-out dresses. Stars love this look for its mix of sophistication and sexiness, and we saw plenty of skin-showing styles at the 2013 Met Gala last night. Gwen Stefani showed off her abs in Maison Martin Margiela, Solange Knowles added a pop of stomach in Kenzo, Olivia Wilde bared her belly in Calvin Klein, and Emma Watson favored asymmetry in Prabal Gurung. And that's not all. Click to see more stars in cut-out dresses—because what's fiercer than showing a little skin?