Stephen "Doc" Kupka is listed in the credits for the following albums:
| Year | Artist | Album | Role |
|---|---|---|---|
| 1985 | Bryan Duncan | Have Yourself Committed | Saxaphone |
| 1986 | Bryan Duncan | Holy Rollin' | Baritone Saxophone |
Stephen "Doc" Kupka
Sax player with the famed "Tower of Power Horns"