Boy Bangs!

Hollywood's youngest leading men – Zac! Pete! – are rocking this hot hair trend. By Munmun O'Neill

Credit: Clark Samuels/startraks

Updated: Thursday Aug 09, 2007 | 06:00 AM EDT

JOE JONAS

Party in the front and party in the back! The Jonas Brother keeps his hair long and a little shaggy for an unkept hipster look that drives his legions of female fans wild.