Hüsker Dü () were an American punk rock band formed in Saint Paul, Minnesota, in 1979. The band's continual members were guitarist/vocalist Bob Mould, bassist/vocalist Greg Norton, and drummer/vocalist Grant Hart. They first gained notability as a hardcore punk band, and later crossed over into alternative rock. Mould and Hart were the band's principal songwriters, with Hart's higher-pitched vocals and Mould's baritone taking the lead in alternating songs.