The show pairs celebrities with regular folks who are competing for money. Via hidden earpieces, the celebrities try to convince the non-celebs to do crazy things to their loved ones in order to win some cash. Heidi decided to make it a hands-on challenge -- a hands-on-her challenge! While the contestant, Allen, was with his friend at a hotel lobby, Heidi told him, "I’m gonna walk through the lobby now, and you’re gonna slap me on the ass.”
Allen looked shocked, but he played along. "That’s Heidi Klum," he told his buddy. "I’m gonna slap her ass. She’s so hot.” Of course, his friend would never believe he would really go through with something so crazy.
"Heidi? What’s up baby?” Allen said, and then he slapped her on the butt. Heidi, acting shocked, slapped him across the face. "Are you crazy?” she shouted at him.
For his pain and suffering -- though we imagine it wasn't all bad for him -- Allen wound up earning $1,500. And he wasn't the only one having fun. Heidi tweeted that she had a lot of fun shooting the episode with her fellow "AGT" judge.