"(I Don't Know Why) But I Do" is an R&B song written by Paul Gayten and Bobby Charles (as Robert Guidry), and performed by Clarence "Frogman" Henry. It was Henry's biggest U.S. hit, reaching #4 in early 1961. The B-side on the single release was "Just My Baby and Me".
The song was made popular again after appearances in the 1994 film Forrest Gump, and the 1999 film Mickey Blue Eyes.
|U.S. Billboard Hot 100
- "Billboard". Billboard Hot 100 airplay and sales charts. Retrieved June 11, 2006.