Brad Pitt, who turns 51 on Dec. 18, has gone through many style incarnations during his tenure as an Adonis. While the man's smile is unquestionably knee-buckling, he's worn puka shells, shiny suits and, in 2002, went through a leather hat phase that wasn't good for anyone. Things are better now (is there anything Angelina Jolie can't do?) but one thing that required deep examination is Pitt's longtime penchant for, uh, interesting eye wear. We've been too blinded by his square jawline to notice his poor use of clear, colored and oversized shades — until now.