Following his solo performance at Sunday’s show, Grammy winner Chris Brown returned to the stage for a mashup of dance and electronica music. Breezy made his way through the outdoor Nokia Plaza in L.A. to join David Guetta on their electro-dance cut “I Can Only Imagine.” Lil Wayne also brought his skateboard swag to the party, as the French DJ cranked up the volume. Performances by Deadmau5 and the Foo Fighters followed.