A Musical Massacre is a 1999 album by hip hop duo The Beatnuts. It was released by Loud Records during a merger with Relativity Records. It is The Beatnuts' most critically and commercially successful album, reaching #35 on the Billboard 200 and hailed as one of "1999's most entertaining hip-hop albums" by Allmusic. In addition, it boasted two singles, "Se Acabo" and the Rhythmic Top 40 hit "Watch Out Now". Although entirely produced by The Beatnuts, A Musical Massacre features guest appearances by artists including dead prez, Biz Markie and Common.