Once saw Bob play live...I believe it was 1979, and he and Dick Wagner were on a club tour with Tim Curry, who played Dr. Frank N. Furter in the Rocky Horror Picture Show. Tim had a minor hit single at the time called "I Do The Rock." I didn't know this at the time, but Tim Curry was bent on proving what a serious rock and roll singer he was, and he felt that singing that "Sweet Transvestite" song was beneath him. So they did nothing from that movie, which disappointed me greatly, and Tim Curry gave me a truly evil look for daring to request it. What a pretentious goober. Yeah, that rock and roll career worked out real well, didn't it?
But the band was right on, and despite having a no-singing singer, they totally carried the show, and Bob had lots of rock and roll energy, and for me he was the show. RIP Bob.