He did lip synch, an example, when he went to Paramount for a screen test he lip synched Blue Suede Shoes. However, this was rare, he has so many live cds and dvd's where he actually forgets the words, laughs, changes the words etc, those all live performances. So in essence, you heard correct, only it was on rare occasions:) Great question, any more just ask me:) Have a wonderful weekend!