The head of the music department, Hugo Meyerhold (Felix Bressart), and his young secretary Angela Jones (Marcy McGuire) engage jive clarinetist Ding Dong Williams (Glenn Vernon).

Angela tries various schemes to induce Ding Dong to play something sad and soulful, including a fake romance with the studio's cowboy star, but all of her attempts fail.

Ding Dong Williams was based on a series of stories by Richard English, published in Collier's magazine, chronicling the comic adventures of a young musician.

In Ding Dong Williams James Warren played a slow-witted movie cowboy with a palomino horse called Star Dust.

It was still playing profitably as a first-run feature in July 1947, as reported in Variety by a Los Angeles correspondent: "Ding Dong Williams is being pushed to a fancy $25,000 [for the week] at the Million Dollar theatre due to power generated by Cab Calloway's orch [sic] on stage.