"Mr. Brightside" is a song by an American New Wave, indie rock band The Killers from Las Vegas, Nevada. It is the 2nd single from their debut studio album Hot Fuss released in 2004. The song was written by frontman Brandon Flowers and guitarist Dave Keuning. The song topped the charts at #1 on the UK Indie (Official Charts Company), #3 at U.S. Billboard Alternative Songs, and #10 at U.S. Billboard Hot 100.