Heidi Klum and Sofía Vergara Share What Makes Their Girls' Nights Out So Fun (Exclusive)

Sofía Vergara and Heidi Klum chat with ET about 'America's Got Talent.' The judges, who are besties off the set, explain how 'gossip' and sharing 'secrets' makes their girls' nights out a blast. The two also dive into season 18 of 'AGT,' which has left them with plenty of standout performances but no clear frontrunner heading into the final shows. 'America's Got Talent' airs Tuesdays and Wednesdays on NBC.