Heidi Klum flashes her pert derriere in sheer black dress with a leather jacket

Sofia Vergara and Heidi Klum look fashionable and glamorous as they head to America's Got Talent set

AGT judges Simon Cowell, Sofia Vergara, Heidi Klum and Howie Mandel get playful on couch together

Heidi Klum Rocks A Sheer Crop Top With Wild Overalls & Stiletto Heels For AGT: Photos