Zac Efron is Back in Black

Zac Efron hides behind his Ray-Ban aviators as he arrives at LAX airport in Los Angeles on Tuesday morning (March 17).

The 21-year-old actor, in a Quiksilver tee, signed an autograph for a fan and made his way out of the airport very fast. Looks like he was anxious to get home!

Zac was down under to premiere his new movie, 17 Again, in the land down under — hitting up Australian cities Sydney and Melbourne.

Did you see the new 17 Again stills?