Songfacts®:

• This is the first cut to be lifted from You Me At Six's fourth studio album, Cavalier Youth. It was the British band's first release following their new album deal with BMG.
  
  You Me At Six worked on the song in Los Angeles with Neal Avron, who has worked with notable artists such as All Time Low, Forever the Sickest Kids and Yellowcard. The song was premiered on Zane Lowe's BBC Radio 1 show September 2, 2013.
• Speaking with Kerrang! magazine, vocalist Josh Franceschi explained the background to the song and why they incorporated marching band style drumming and gang vocals. "Through the last six years there would always be people who said, 'Oh I don't think you can do that.' But we always believed in ourselves even if nobody else did," he said. "Marching goes hand in hand with showing unity and 'we are believers' was a line that really needed to be exaggerated for people to get the point. Five people against the world – as corny as that sounds."
• The song features on the soundtrack for the FIFA 14 computer game.
• Francheschi explained to Kerrang! how the song came together: "We were listening to a lot of pop music," he said, "so we were like, 'We've got to make a big hooky chorus, without it being lame.' Matt (Barnes, bass) said, 'I'm not going to play for the whole first verse,' so, when the bass comes in, it sounds really big."
• Franchesci told Kerrang! the lyrics are about being in You Me at Six. "At that time, everything was great in our little bubble," he said. "Then as soon as we went out of that bubble, we were like, 'What the f--- are we going to do?' It's about how, in music and life, you only really need to believe in yourself."
• You Me at Six scored their first UK #1 album when Cavalier Youth topped the chart in its debut week.