A statement from one of the concert's sponsors:
UPDATE: Here's the full statement:
Lupe Fiasco performed at this private event, and as you may have read, he left the stage earlier than we had planned. But Lupe Fiasco was not "kicked off stage" for an "anti-Obama rant." We are staunch supporters of free speech, and free political speech. This was not about his opinions. Instead, after a bizarrely repetitive, jarring performance that left the crowd vocally dissatisfied, organizers decided to move on to the next act.