Guess Who's Back: Heartthrob Zac Efron!

Zac Efron hit the streets of LA to have lunch on Thursday afternoon!

He was kind enough to take pictures and sign autographs for many of his fans! How sweet!

If you've been wondering where our Zacy has been, it turns out he's become quite the night owl.

He's been experiencing the LA nightlife from spending nights at the famous Chateau Marmont to attending hip concerts such as Florence and the Machine.

Well he better sleep up! He's going to start filming his new movie the Paperboy soon with Matthew McConaughey and Tobey Maguire!