Islands In The Stream is a 1983 song originally written by the Bee Gees for Marvin Gaye. It was later performed by country music stars Kenny Rogers and Dolly Parton. Brian (dressed as Kenny) and Stewie Griffin (dressed as Dolly) perform the song at a karaoke bar in the Family Guy fanfic Nice To Tennessee You. The song also is heard in Captain Underpants: The Movie at a country bar.