The incident took place during his August 30 performance of the song "Pursuit of Happyness," where video shows the rapper in the pit, shaking hands and signing autographs.

Then, without warning, the musician loses consciousness, falling backwards (fortunately) into the arms of a security guard, who then hoists him up and carries him out of view, to presumably safety. Watch the dramatic scene unfold in the above video. Kid Cudi's fainting spell occurs around the 0:55 mark.