Songfacts®:

• This song penned by Muse singer/guitarist/keyboardist Matthew Bellamy, bassist Chris Wolstenholme and drummer Dom Howard is the lead single for the soundtrack of the third Twilight movie, Eclipse.
• Muse are said to be Twilight author Stephanie Meyers' favorite band, and the English three-piece previously contributed their song "Supermassive Black Hole" to the soundtrack of Twilight, and a remix of "I Belong To You" appeared on the New Moon soundtrack in 2009.
• In this song, Bellamy reflects on the true power of love. He explained on BBC Radio 1 that it was written after he broke-up with his long-term girlfriend at the end of 2009, and was based on his feelings at the beginning of their relationship.
• In an interview with the BBC, Wolstenholme said he was ambivalent about the band's music being a part of the Twilight soundtrack. He said: "I'm not sure how cool it is to be on those kind of things but sometimes you've just got to get your music out there in different ways. It's very difficult in America because you don't have anything like Radio 1, nothing is national. You have to take every opportunity you get over there and sometimes you have to sell your soul."
• Wolstenholme discussed with the BBC the confusion surrounding how this track would appear in Eclipse: "When we were in the studio writing it, one minute they said they wanted to use it in the end credits, then they said they wanted to use it in another scene. Then it was another scene and in the end we were like, 'Do what you want with it, we don't care any more.'"