Zac Efron: Hand Injury Explained?

Zac Efron stops to sign a few autographs as he arrives back at LAX airport in Los Angeles on Thursday night (April 26).

The 24-year-old actor (wearing a Life/After/Denim shirt) just returned from a promotional tour around Europe with costar Taylor Schilling for their film, The Lucky One.

PHOTOS: Check out the latest pics of Zac Efron

When asked about his hand injury at the premiere in London, Zac joked about how he got it.

“A fan bit me,” Zac shared with press (via People).

WHAT DO YOU THINK really happened to Zac’s hand?

10+ pics inside…