From our seats (Section 104, on the far end of the arena) I could not tell if he was lip synching. It didn't even occur to me. Looked like he was singing it, to me. Unfortunately we had a dazed and rather smoked-out section, so our energy level was a bit lax, but the view was great, sound as superb as it gets, and the visuals, well let's say it was like nothing I've ever seen before. My friend commented: is this the pinnacle of concert visuals or is it a beginning, a taste of what we can expect to see in the future? Overall it was a pretty astounding show. The emotional highlight probably the "Bring the Boys Back Home" song and visuals, and "Run Like Hell" was pretty great as well. Huge puppets, crashing airplane, floating pig. huge wall tumbling down on-stage. Not quite sure if it was rock and roll, but it was definitely theater.