Yusuf Islam (born Steven Demetre Georgiou; 21 July 1948), commonly known by his former stage name Cat Stevens, is a British singer-songwriter, multi-instrumentalist, humanitarian and education philanthropist. He is a prominent convert to Islam. Stevens' albums Tea for the Tillerman (1970) and Teaser and the Firecat (1971) were both certified triple platinum in the US by the RIAA. His 1972 album Catch Bull at Four sold half a million copies in the first two weeks of release alone and was Billboard's number-one LP for three consecutive weeks. Read more about Cat Stevens on Last.fm.