The Replacements were an American rock band formed in Minneapolis, Minnesota, in 1979, and are considered pioneers of alternative rock. The band was composed of the guitarist and vocalist Paul Westerberg, guitarist Bob Stinson, bass guitarist Tommy Stinson and drummer Chris Mars for most of its career. Following several acclaimed albums, including Let It Be and Tim, Bob Stinson left the band in 1986, and Slim Dunlap joined as lead guitarist. Steve Foley replaced Mars in 1990. Towards the end of the band's career, Westerberg exerted more control over the creative output. The group disbanded in 1991, with the members ultimately pursuing various projects. A reunion was announced on October 3, 2012. The Replacements never had significant commercial success, except for "I'll Be You", which hit No. 1 on the Alt Rock Billboard listing, but they influenced numerous alternative rock acts.