"When You Were My Girl" is a song by English recording artist Matt Cardle. The song was released as a digital download in the United Kingdom on 13 October 2013 as the second single from his third studio album Porcelain (2013). The song was written by Cardle, Will Talbot, Jamie Scott, Toby Smith, JC Chasez, and Jimmy Harry, and it was produced by Cardle, Smith, and Scott.