Who's the new face of Rogaine? None other than our favorite nanny-humper, Jude Law! So-Thin! reader Kyle spotted Jude, sans on-again GF Sienna Miller, outside the Hard Rock Cafe at the Beverly Center recently. The Alfie star was dressed in the usual, too-tight blazer and scarf, but had one noticeable flaw, his hair was SO THIN! Evidently Jude's hairline is receding faster than Nicole Richie's weight. Now we finally have legit a reason (for a role? psssh!) on why Sienna cut off all her hair! Jealousy has a name, and its Jude Law!