"He's So Unusual" is a song from the late 1920s performed by Helen Kane, who was the inspiration for the Betty Boop character.

Released on June 14, 1929, "He's So Unusual" was featured in the motion picture Sweetie.

This is evidenced in the signature line featured in the lyric.

The song is referenced in the 1962 Academy Award-nominated animated short Disney musical film A Symposium on Popular Songs during the song "Charleston Charlie", written by Al Sherman's songwriter sons: Robert & Richard Sherman.

The sung lyrics continue in the background of the subsequent song, "Yeah Yeah", while the beginning of the song plays before "Girls Just Want to Have Fun" in the song's music video.