"Daddy Cool" is a song by US doo-wop group The Rays and was released on Cameo Records as the B-side of their 1957 single "Silhouettes". It became a #3 hit on the Billboard Pop singles chart. The song was written by Bob Crewe and Frank Slay, who had also written the A-side, "Silhouettes". The song became a #1 single on the Australian singles charts when covered by novelty band Drummond in 1971, and remained there for seven weeks. UK cover band Darts also had a hit single with the song, which reached #6 in 1977.