We all go a little crazy from time to time… but these singers are full-on WIGGIN’ OUT! Some celebs choose to flaunt their striking looks on red carpets, while others create a wow factor with costume-clad performances. Whatever the reason, Christina Aguilera, Lady Gaga, Lil’ Kim and Nicki Minaj are just a small selection of the many stars who’ve gotten the radest hairstyles on locks-down. Yep, that was a hair pun. Check out the full gallery of 40 Times Celebs Rocked Crazy Wigs!