This track features guest vocals from Oli Sykes of Bring Me The Horizon, and is about the dark periods You Me At Six have been through. Vocalist and lyricist Josh Franceschi explained to Kerrang! magazine: "This is me saying to the other four, 'You're not always as great as you think you are. Nor am I.' Musically, this is us at our heaviest and angriest, and Oli Sykes has a unique voice for that."
The TV show Cheers was nearly canceled after its first season, but the theme song, "Where Everybody Knows Your Name," was very popular. To satisfy viewer demand, the theme was made into a full song and released as a single.
The lyrics for "Mary, Did You Know?" were written by Christian singer and comedian Mark Lowry, after his pastor asked him to write a Christmas musical for their church. Southern gospel musician Buddy Greene later added music to his words.