Summer nights are a great time for color, but there's also nothing sexier and classier than a little black dress!

On Tuesday evening in New York City, Heidi braved the heat in a Francesco Scognamiglio dress for the outdoor premiere party of 'Project Runway' season 10, and it got us in the mood to try out the look on our own!

From halter-style dresses to flowy, layered versions, there's an abundance of LBDs out there that are great for sexy summer nights. Here's a few to try, inspired by Heidi's look on Tuesday.