The pressure was on for "Project Runway" winner Michael Costello heading into the Grammys this past Sunday. He wasn't just making anyone's dress, he was making Beyonce's dress - you know, that super revealing one. "We didn't have any of her sizes or measurements," he told E! News. "The dress was just made to fit a sample mannequin. It's smaller than a size 4. She is tiny! That dress is at least a 2/4. She looks amazing. I just love the way it all came together. Ty [Beyonce's stylist] knew it was going to fit."