Producer/keyboardist Jack Nitzsche, who had been a member of Phil Spector's Wrecking Crew and played on records by the Rolling Stones, had worked with Young on his debut solo album and on tracks for Buffalo Springfield.
As a member of Phil Spector's Wrecking Crew and having played on records by the Rolling Stones, Jack Nitzsche contributed to both Young's debut solo album and Buffalo Springfield recordings.