Burton also sang a duet with Bette Davis, the rock and roll song "What Ever Happened to Baby Jane?
[1] It was released as a promotional single, with Burton's rendition of "I've Written a Letter to Daddy" on the flipside.
In 1964 Burton released a single entitled "The Next Day", which was co-written by Perry Botkin, Jr. with Harry Nilsson.
[2] The song was featured on the 2004 compilation Girls Go Zonk: US Beat Chicks and Harmony Honeys.
The music to the song was originally If I Had My Life to Live Over, written by Henry Tobias, Moe Jaffe and Larry Vincent in 1939.