Zac Efron Was Hot & Sweaty for His Twitter Q&A Tonight (Photo)

Zac Efron gives a shaka sign while taking a break on the set of his movie We Are Your Friends on Saturday evening (September 20) in Los Angeles.

The 26-year-old actor, who looked all hot and sweaty in the photo, was at his computer to answer fan questions during a Twitter Q&A session.

“Thanks guys! They’re calling me back to set from lunch. Love you all! Until next time… Love, Z,” Zac tweeted at the end of the Q&A. Check out his page to see all the responses!

Also pictured inside: Zac arriving on set the day before in a white t-shirt.