Photo: Phil Loftus/Capital Pictures/Retna Ltd/Larry Busacca/Retna Ltd.
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Jon Bon Jovi
Forget the Snooki pouf -- Jersey boy Jon had a crazier 'do back in the '80s! Nowadays, the 50-year-old rocker still has a full head of hair (albeit with a much better style). Think this smiley singer is just as cute today as he was when he wrote "Livin' on a Prayer"?