It's a Beautiful Day is an American band that emerged from San Francisco's psychedelic scene in the late 1960s. The group is known for its blend of rock, folk, classical, and jazz influences, with a distinctive sound marked by the haunting violin work of band member David LaFlamme. Their most influential work is arguably the track "White Bird" from their self-titled 1969 debut album, which remains a classic of the psychedelic era. The band's fusion of diverse musical styles contributed to the evolution of progressive and art rock.