Those of you with hair: Commence slicking it! The Bowser look is BACK! So far we've seen trend prophet Chloë Sevigny rockin' the Dippity Do, and Brad Pitt (who makes everything look good) working it on the set of his new movie. So you know what this means, kiddies! Stained pillowcases and forehead acne, ahoy! And as usual, unsung fashion forecaster Katie Holmes was waaaaaay ahead of the curve on this one, rocking her oil-slicked hair during last summer's BP crisis. When will we learn to trust her on these things?