Looking at Jet Airliner. One thing I love(d) about Glenn is that he was so into the music even when he was playing a supporting role. When somebody else was singing, Glenn wasn't making "look, I'm here too" movements and trying to make contact with the audience. He was totally into the song. You can see what I'm talking about at 1:02 mark in the Jet Liner clip. I've seen that before and I love it.