"It's getting hot, but I don't want to see a hot mess," says Project Runway winner Christian Siriano. "What's in for summer? Texture, texture, texture!" In fact, the innovative designer incorporated just that in his virtual prom designs at Gaia Online's Prom Crashers event.

Christian advises keeping your outfits compelling—not amusing. "Think fun, flirty frocks with tons of crafty embellishments," he explains.

"While everyone loves a sleek-mode mini dress," Christian points out, "this summer, it's also all about the comfort cruise wear with chic, cheeky sunhats."