R.E.M. was an American rock band formed in Athens, Georgia, in 1980 by drummer Bill Berry, guitarist Peter Buck, bassist Mike Mills, and lead vocalist Michael Stipe, who were students at the University of Georgia. R.E.M. was noted for Buck's arpeggiated "jangle" guitar playing; Stipe's distinctive vocal style, unique stage presence, and cryptic lyrics; Mills's countermelodic bass lines and backing vocals; and Berry's tight, economical drumming. In the early 1990s, other alternative rock acts such as Nirvana, Pixies, and Pavement named R.E.M. as a pioneer of the genre. After Berry left in 1997, the remaining members continued with mixed critical and commercial success. The band broke up amicably in 2011, having sold more than 90 million albums worldwide and becoming one of the world's best-selling music acts.