Fleetwood Mac are a British-American rock band originally formed in London. Formed in July 1967, the group originally consisted of lead guitarist and vocalist Peter Green, slide guitarist and vocalist Jeremy Spencer, bassist Bob Brunning and drummer Mick Fleetwood. The band's current lineup includes Fleetwood, bassist John McVie (since September 1967), vocalist Stevie Nicks (from December 1974 to December 1990, and since March 1997), lead guitarist Mike Campbell and rhythm guitarist and vocalist Neil Finn (both since April 2018).