Click the video to watch live streaming video from the red carpet of the 'The Hangover Part II' premiere in Hollywood via NowLive brought to you by Bing!
In addition to 'The Hangover' stars Bradley Cooper, Ed Helms, Zach Galifianakis and Mike Tyson, other celebrities expected to attend include: Jason Bateman, Kristen Bell, Sean "Diddy" Combs, Will Ferrell, Jay-Z and Rihanna.
'The Hangover Part II' hits theaters May 26.
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