performed live at the 2011 Adult Swim Upfront event last week, which was held at the Roseland Ballroom in NYC Wednesday night (May 18).Ne-Yo
, Pharrell Williams
and Swizz Beatz
were also holding it down at the event along with many others celebs. During the press event, Adult Swim - a "sub-channel" that airs on Cartoon Network - announced the launch of three new series,"The Heart, She ...