After Glen Matlock left the Sex Pistols in 1977 (to be replaced by Sid Vicious), he formed a band with Midge Ure called Rich Kids. They only made one album, Ghosts of Princes in Towers, and it bombed on the charts, but it’s a power pop masterpiece. (I bought the LP when it came out and I still have it.) Here they are on the British TV show Revolver in 1978 playing two of their songs. (I spotted a very happy Billy Idol in the crowd at the 52-second mark.)