"Stay My Baby" is a pop song written by Max Martin, Tommy Tysper and Savan Kotecha as the second single from Amy Diamond's third studio album Music in Motion (2007). Produced by Martin and Tysper, the song was written for Diamond by special request from her management and released November 21, 2007. It reached number 1 on the Swedish Singles Top 60 chart. The song instrumental was included on the re-release of the album: Music in Motion/Gold Edition (2008).