Have you seen those "Celebrities: They're just like us" stories in magazines? It's usually photos of famous people grocery shopping, doing laundry-- stuff we regular folks do.
For whatever reason we get a kick out of seeing stars act like real people. That's why it's cool to see them on a game show, cheesing it up, trying to win car just like any of us would!
Check out this video of Stephen Christian, lead singer of Anberlin, doing just that on recent epodes of The Price is Right. He even made a T-shirt!