Actor gives Ellen DeGeneres intimate lap dance

Zac Efron shows off his sexy moves while giving TV host Ellen DeGeneres a lap dance during a game of “Heads Up” on The Ellen DeGeneres Show, airing Wednesday (January 20).

The 28-year-old actor also had to act out twerking, skinny dipping, making out, and more for the game.

Zac stars in the upcoming movie 'Dirty Grandpa', (in theaters this weekend), and he opened up about working with his idol Robert De Nero.

"Working with De Niro was really fantastic because I got to get to know the legend, but it was also really awkward at moments cause I’ve seen virtually everything this guy’s done. I mean, I’ve seen every film I can quote him verbatim in half of his movies, if I can even reach half. He’s never seen a single thing that I’ve done, like at all,” Zac said.