In this song Blunt grieves over a broken relationship but claims he would make the same mistake again given the chance.
Blunt performed this song before an estimated television audience of 2 billion people at the 2007 Live Earth event.
This was featured in the film 2007 movie P.S. I Love You, starring Hilary Swank, Lisa Kudrow and Gerald Butler and was used in its promotional campaign.
The cover for All The Lost Souls is a compilation of hundreds of his photos from James Blunt's childhood to present, resulting in am image of his face.
Blunt told I Like Music: "It's a song about self reflection. It looks at remorse and guilt, about how we make mistakes as humans, how we are fallible. Sometimes I can be my own worst enemy."
Blunt told VH1: "I wrote the song on tour. It's a play in the words - 'Give me a reason, but don't give me a choice, 'cause I'll just make the same mistake again.' We toured with that song, and we tried it a few times and I stopped playing it toward the end of the tour because I wanted to save it up a little."