“Ya Ya” is a song by Lee Dorsey. The song was written by Lee Dorsey, Clarence Lewis, Morgan Robinson and Morris Levy. Levy’s participation in the writing has been previously called into question. In fact, the Flashback release of the single (image) lists only Dorsey and Lewis as writers, as do the liner notes to the American Graffiti soundtrack.
The song was inspired by a children’s nursery rhyme.