Efron covers his signature shag do with a knit hat while out in Burbank, Calif. Plus: Kristen Stewart, Johnny Depp, Gisele Bündchen and more

SUPER SOAKER

Look who's ready for summer! Baring her beach-ready body, Hilary Duff braves the waves Wednesday in a sleek black bikini during her Hawaiian getaway.

See more stars take it off in Beach Patrol!