By Betony Toht
Updated Sep 07, 2012 @ 6:25 pm
Janet Mayer/Splash News (2)

Let there be no doubt—Heidi Klum has still got it! For the Project Runway finale show, the model host (and mother of four!) showed off her impressive tan—and even more impressive shape—in a sparkling bare-all gown from Alexandre Vauthier. We can't decide whether we like the provocative haute couture look best from the front or the back, but we want her workout secrets, stat!

Plus, get all our Project Runway scoop here!