Heart is an American rock band formed in 1973 in Seattle, Washington. The band evolved from previous projects led by founding members Roger Fisher (guitar) and Steve Fossen (bass guitar), including The Army (1967–1969), Hocus Pocus (1969–1970), and White Heart (1970–1973). By 1975, original members Fisher, Fossen, and Ann Wilson (lead vocals and flute), along with Nancy Wilson (rhythm guitar, vocals), Michael Derosier (drums), and Howard Leese (guitar, keyboards and backing vocals) formed the lineup for the band's initial mid- to late-1970s success period.[1] These core members were included in the band's 2013 induction into the Rock and Roll Hall of Fame.[2]

Heart rose to fame with music influenced by hard rock and heavy metal,[3] as well as folk music. The band underwent a major lineup change between the late 1970s and the early 1980s; by 1982 Fisher, Fossen, and Derosier had all left and were replaced by Mark Andes (bass) and Denny Carmassi (drums).