"Money" is a song by the English progressive rock band Pink Floyd from their 1973 album The Dark Side of the Moon. Written by Roger Waters, it opened side two of the LP. Released as a single, it became the band's first chart hit in the US, reaching #10 in Cash Box magazine and #13 on the Billboard Hot 100. "Money" is noted for its unusual 7/4-4/4 time signature, and the tape loop of money-related sound effects that opens the song.