"Rockin' Robin" is a song written by Leon René under the pseudonym of Jimmie Thomas and recorded by Bobby Day in 1958. It was Day's only hit single, becoming a number-two hit on the Billboard Hot 100 and spent one week at the top of the charts (number one hit) in R&B sales.

The copyright on singer Bobby Day’s original version of “Rockin’ Robin” was never renewed, leaving the music and lyrics free for all to cover to their heart’s content, royalty-free. Just don’t try it with Michael Jackson’s hit 1972 arrangement of the song, which is still under copyright.