About this song
- Foo Fighters . User-contributed text is available under the Creative Commons By-SA License; additional terms may apply. — lastfm
- "Semi-Mental" is a song by Biffy Clyro and the first single from their fourth album, Puzzle, and is a download only single. It was released on 25 December 2006. The song was not UK singles chart eligible as at the time, downloads only counted towards charts sales if there was a physical release. — wikipedia
