Songfacts®:

• This song with gospel-influenced layers of sound is about the emotions that you feel when you have been heartbroken. This song, like many on Lungs, was written while Florence Welch the front woman and main person of Florence + the Machine, was getting over breaking up with her boyfriend – it was the first time that her heart had ever been broken. However once the record was completed, Welch found herself back in love with the same man. She told The Independent June 27, 2009, "it's difficult, because half the album is about breaking up with him!"
• Welch tweeted about the song's promo: "Shooting video today, with blue skinned shangri la ladies, a Viking, A gospel choir, I'm dressed as a kabuki monk.... All in a days work really...x"
• Welch explained on her website: "This was written in about 10 minutes. I'd never had my heart broken before, and when I did I realised how delicious it can be, how intoxicating. You suddenly realise that all the little things you cared about don't matter. You don't care about anything. You think, I'm going to drink myself to death.' And then you bump into them and they're with another girl. You've been waiting for the worst to happen, and then when it does – you're free. Nothing matters. All the wind is taken out of you, but then all of a sudden you're like 'I'm going out! And nothing can stop me, nothing can hurt me any more! I'm invincible, because you've hurt me so much.'"