While the actor got pretty soaked — take a minute to just enjoy that — he also brought back a childhood hairstyle thanks to Fallon busting out some wigs, showed off his impression of his costar Seth Rogen, and talked Neighbors 2!
Ch-ch-check out the wet game as well as Efron's CRAZY childhood hairstyle and his AH-Mazing Rogen impression (below)!
Zac & Jimmy play Water War:
The Hollywood hunk brings back and old hairstyle:
The HSM alum impersonates Seth and talks Neighbors 2:
Make sure to watch The Tonight Show weeknights at 11:35 p.m. EST on NBC!