"I Believe in a Thing Called Love" is a song by English rock band The Darkness, released as the third single from their debut studio album, Permission to Land. When released as a single in September 2003, it peaked at number two in the UK Singles Chart, just behind The Black Eyed Peas' "Where Is the Love?". Lead singer Justin Hawkins performs much of the song in falsetto. It was named the 276th best track of the 2000s by Pitchfork Media.