"Mr. Brightside" is the first single released by American rock band the Killers. It was the band's debut single and is from their debut studio album, Hot Fuss (2004). Written by band members Brandon Flowers and Dave Keuning, it was one of the first songs the Killers ever wrote. Two music videos were made for the song: the first one was shot in black and white and features the band performing in an empty room. The second one, based on the 2001 film Moulin Rouge!, was filmed for the song's re-release.