Aleksandar Živojinović (born August 27, 1953), known professionally as Alex Lifeson (), is a Canadian musician, best known as the guitarist for the rock band Rush. In 1968, he co-founded a band (which later became Rush) with drummer John Rutsey and bassist and lead vocalist Jeff Jones. One month later, Jones was succeeded by Geddy Lee and in 1974, Rutsey was succeeded by Neil Peart, at which point the lineup remained unchanged until the band's initial dissolution in 2015; Lifeson and Lee eventually reformed Rush in 2025, with Anika Nilles as a live drummer.
