Crystal the monkey upstages The Hangover 2's leading men at movie premiere

By Daily Mail ReporterMonkeying around: Ken Jeong poses with Crystal the monkey at the premiere of The Hangover Part II at Grauman's Chinese theatre in HollywoodHer pink dress was complete with ruffles and carefully accessioned with a pearl necklace. But it wasn't Crystal's outfit that stole the show at the premiere of the Hangover 2 last night, but the fact she's a monkey.The newest cast membe...