Zac Efron Twerks And Gives Ellen DeGeneres A Lap Dance

Hunky Zac Efron stopped by Ellen to promote his upcoming movie Dirty Grandpa, and our intrepid hostess talks Zac into a game of HEADS UP.

And, because she loves us, she picked the category of "bad behavior."

Zac does not fail in his mission. He successfully gets to act out - in leather pants, no less - "lap dance," "twerk," "making out," and "skinny dipping." Although, I really thought he should have ripped off that shirt for the "skinny-dipping" challenge.

Check it out below.