"My Heart Belongs to Daddy" is a song written by Cole Porter for the musical Leave It to Me! which premiered on November 9, 1938. It was originally performed by Mary Martin, who played Dolly Winslow, the young "protégée" of a rich newspaper publisher,[1] her sugar daddy. In the musical, Dolly wears a fur coat while stranded at a Siberian railway station and surrounded by eager men. She performs a striptease and sings to them about how since she has her "daddy", she may still flirt with other men but won't "follow through".