The Who are an English rock band formed in London in 1964. Their classic lineup (1964–1978) consisted of lead vocalist Roger Daltrey, guitarist Pete Townshend, bassist John Entwistle, and drummer Keith Moon. Considered one of the most influential rock bands of the 20th century, their contributions to rock music include the development of the Marshall stack, large public address systems, the use of synthesisers, Entwistle's and Moon's influential playing styles, Townshend's feedback and power cho