"Sunday Girl" is a song recorded by the British synthpop duo Erasure. Written by Erasure members Vince Clarke and Andy Bell, it is the opening track on the duos thirteenth studio album Light at the End of the World. The song was the second UK single released from the album, on 11 June 2007.[1][2][3] A North American release followed in July 2007. "Sunday Girl" is a very uptempo electronic music song which tells the story of someone who has immersed herself in nightlife and while in a nightclub catches the attention of Bell, who offers to dance with her "til Sunday morning" but warns "dont you mess your life up, Sunday Girl". The introduction is very similar to the bridge of the duos 1995 single "Fingers & Thumbs (Cold Summers Day)".