I saw UFO in the late '70s with AC/DC, Nazareth and Heart. AC/DC was just outstanding, but UFO were just awful. It was the tour with Ray Chapman, right after Schenker left the first time. The whole band was trashed. Pete Way was so bad that he fell up the stairs to the stage, and on the opening song, "Doctor, Doctor", he launched into the wrong chord. It's bad enough hitting a bad note, but that opening chord rang so wrong, the whole ballpark could tell. I loved UFO in their prime, but never could stand Phil Mogg's singing. That always straining to be in key grated me.