Aleksandar Živojinović, better known by his stage name Alex Lifeson, is a Canadian musician, songwriter, and record producer, best known as the guitarist and backing vocalist of the progressive rock band Rush. In 1968, Lifeson co-founded the band that would later become Rush, with drummer John Rutsey and bassist and lead vocalist Jeff Jones. Jones was replaced by Geddy Lee a month later, and Rutsey was replaced by Neil Peart in 1974.