Gomez is a show-stopper at a holiday concert in San Jose, Calif. Plus: Zac Efron, Anne Hathaway, Tori & Dean, Fergie and more

RULE OF THUMB

Ever the fashion risk-taker, Kayne West rocks the mic – and pairs a leather kilt with a T-shirt decorated with his own face! – at his star-studded "Watch the Throne" concert with dad-to-be Jay-Z Tuesday evening at L.A.'s Staples Center.