Smile (Lily Allen song) is a song by Glee Cast from the album Glee: The Music Volume 4. It was released on 2012 and was originally written by LILY ALLEN, CLEMENT DODD, JACKIE MITTOO, DARREN EMILIO LEWIS, IYIOLA BABATUNDE BABALOLA. Musically, the song is a Pop track and it has a tempo of 95 beats per minute.