From Geek to Chic

Some of your favorite Hollywood stars weren't always coiffed and fabulous. In fact, celebs such as Vin Diesel suffered through the awkward phase just like the rest of us. Check out photos of the stars long before they became household names – and before they got up-close-and-personal with their stylists.

ROCKER WANNABE

Clearly, Brad Pitt was trying to look rock-star cool on a 1989 episode of Growing Pains (left) – but he looks more dorky than delicious. Since then, Pitt (in 2001, right) – a two-time PEOPLE Sexiest Man Alive – has shed all traces of geekiness. "The man glows," former girlfriend Jitka Pohlodek told PEOPLE in 2000.