Sophie Barker is a singer best known for her work with the British downtempo group Zero 7. She is the co-writer of the band's biggest hit, Destiny, and sings the song alongside fellow vocalist Sia Furler. Barker also co-wrote and sang Zero 7 songs such as In the Waiting Line and Spinning on the Zero 7 album Simple Things, which has sold more than one million copies worldwide. Barker also contributed to the follow-up Zero 7 album, When It Falls, co-writing the songs Passing By and In Time.