"Eternity" / "The Road to Mandalay" is the fifth single from English singer-songwriter Robbie Williams' third studio album, Sing When You're Winning (2000). "Eternity" does not appear on the album but was later included on Williams' Greatest Hits album in 2004. The lyrics of "Eternity" were written as a tribute to Williams' close friendship with Geri Halliwell. Brian May of Queen plays electric guitar on the track.