Zac Efron: Rockets vs. Lakers!

Zac Efron watches the LA Lakers defeat the Houston Rockets, 93-81, at the Staples Center on Friday (April 3) in Los Angeles.

On Wednesday, the 21-year-old actor shot shirtless scenes for a new FunnyorDie video at Hairspray director Adam Shankman‘s house in Hollywood.

The video, which was produced through Adam‘s Offspring production company, will premiere in theaters as a lead-in to Zac‘s new flick, 17 Again, out April 17.

Bigger pics inside…