Gil Garfield to Gary Lewis and the Playboys in 1965. Since then, Jim Keltner has played drumsJoe Cocker in 13 Steps
- Gil Garfield wrote As I Wander Lonely
- As I Wander Lonely was arranged by George Tipton
- George Tipton arranged You Can't Do That
- You Can't Do That was written by John Lennon
- John Lennon produced Loop de Loop
- Loop de Loop features saxophone played by Bobby Keys
- Bobby Keys played saxophone for Pussy Cats
- Pussy Cats includes drums played by Ringo Starr
- Ringo Starr played drums for Drumming is My Madness
- Drumming is My Madness features piano played by Jane Getz
- Jane Getz played piano for Duit on Mon Dei
- Duit on Mon Dei includes 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