There was an album recorded at various times in the 70s that wasn't released until around 2001, can't remember the artist's name but the credit for production was Jagger/Richards and not The Glimmer Twins...
Had to google it; John Phillips, one of the Mamas and Papas, was the artist in question. Presumably released in 2001 because that was the year he died.
Also stated that he had a very dark side, having had a 10 year incestuous relationship with his daughter. Another icon hits the dust....