who are the members?
Robert Plant, Jimmy Page, John Paul Jones, John Bonham
Led Zeppelin
The group consisted of vocalist Robert Plant, guitarist Jimmy Page, bassist/keyboardist John Paul Jones, and drummer John Bonham. With their heavy, guitar-driven sound, they are regularly cited as one of the progenitors of heavy metal, although their style drew from a variety of influences, including blues and folk music. The band have been credited with majorly impacting the nature of the music industry, particularly in the development of album-orientated rock (AOR) and stadium rock. Many critics consider Led Zeppelin one of the most successful, innovative, and influential rock groups in history. 
when was led zeppelin's first album released 12 January 1969 is led zeppelin a band? Yes - an English rock band
wiki:7752509
Led Zeppelin [SEP] Introduction
Page wrote most of Led Zeppelin's music, particularly early in their career, while Plant generally supplied the lyrics. Jones's keyboard-based compositions later became central to the group's catalogue, which featured increasing experimentation. The latter half of their career saw a series of record-breaking tours that earned the group a reputation for excess and debauchery. Although they remained commercially and critically successful, their output and touring schedule were limited during the late 1970s, and the group disbanded following Bonham's death from alcohol-related asphyxia in 1980. In the decades that followed, the former members sporadically collaborated and participated in one-off Led Zeppelin reunions.