
Zac Efron has decided to explain why his jaw grew three sizes overnight and the story behind it is as painful as it is funny.
Last year, for Earth Day, the "Hairspray" star appeared in a music video looking, shall we say, puffy. The internet quickly decided he had botox/fillers botched, but in a new interview the actor revealed the truth: He just broke his jaw.

Zac was running around the house in his socks when he slipped and crashed into a granite fountain, knocking himself unconscious. When he came to, his jaw "was hanging" and while he was recovering, his whole face was swollen.
The actor then underwent physical therapy to restore his jaw to normal.
Doubtful people will say that Zac has used fillers and botox or similar procedures on his face anyway, but at the end of the day, we can't hold him accountable. He knows what he's doing with his portrait. It remains charming, though.
Source: Men's Health