Beastie Boys were an American hip hop band from New York City, formed in 1981. For the majority of its career, the group consisted of Michael "Mike D" Diamond (vocals, drums), Adam "MCA" Yauch (vocals, bass) and Adam "Ad-Rock" Horovitz (vocals, guitar).
Originally formed as a four-piece hardcore punk band in 1981 by Diamond (vocals), John Berry (guitar), Yauch (bass) and Kate Schellenbach (drums), the band appeared on the compilation cassette New York Thrash, before recording their first EP Polly Wog Stew in 1982. Berry left shortly thereafter, and was replaced by Horovitz. After achieving moderate local success with the 1983 experimental hip hop