It was ruffles all the way for Heidi Klum, who was one of the first to arrive at the MET Costume Institute Gala. The pregnant model wore a dramatic navy taffeta and sheer gown designed by J.Mendel. Loads of layers of fabric were used to hide Heidi's baby bump, the question is - why? Especially since the cat is already out of the bag. The host of Project Runway also sported one of the night's biggest trend - a train. See how many more stars you can spot this look one!