Dennis Belfield to Gary Lewis and the Playboys in 1965. Since then, Jim Keltner has played drumsJoe Cocker in 11 Steps
- Dennis Belfield played bass for Stop and Take the Time to Smell the Roses
- Stop and Take the Time to Smell the Roses features guitar played by Fred Tackett
- Fred Tackett played guitar for ...That's the Way It Is
- ...That's the Way It Is includes cello played by Jesse Ehrlich
- Jesse Ehrlich played cello for Aerial Ballet
- Aerial Ballet includes timpani played by Milt Holland
- Milt Holland played percussion for Son of Schmilsson
- Son of Schmilsson includes piano played by Nicky Hopkins
- Nicky Hopkins played piano for Old Dirt Road
- Old Dirt Road features drums played by Jim Keltner
- Jim Keltner played drums for Gary Lewis and the Playboys in 1965. Since then, Jim Keltner has played drumsJoe Cocker