The best and brightest stars in music were in Las Vegas for the 2011 Billboard Awards last night. Even First Lady Michelle Obama is getting in on the fun by honoring Beyonce with a Millenium Award. Rihanna, MJB and Trey Songz are a few of the artists who will be gracing the stage.
From Kelly Rowland to Nas, take a look at who else graced the red carpet, and who performed…