....and he toured briefly with Jethro Tull when their first guitarist quit (if you watch the Rolling Stones' Rock and Roll Circus, you'll see him playing with Tull).
Elvis Costello's dad was Ross McManus - he used to sing on the BBC in the days when the nedle time rule prevented them playing records most of the time.
The Nice were once a backing band for PP Arnold, although it was Stevie Marriott from the Small Faces who did the backing vocals - and PP Arnold did the backing vocals on the Small Faces 'Lttle Tin Soldier' - and the the Small Faces recorded 'Here comes The Nice' - cosy, eh?
...and Sandy Denny...