So what did George do when John and Paul were looking sideways at each other during the recording of Let it Be? He went to the Ray Charles concert. Got Billy Preston, where he was playing the organ, and bought him back to calm the mood. "Say Billy, While you're here, why don't you make yourself useful, and play on the album" Billy Preston, and Tony Sheridan were the only two non Beatles to receive label performance credit on any Beatles record.
