Pink Floyd was a British rock band formed in 1965, known for pioneering progressive rock and creating concept albums with complex compositions and philosophical themes. The band’s classic lineup included Syd Barrett, Roger Waters, David Gilmour, Nick Mason, and Richard Wright. They gained worldwide fame with albums like The Dark Side of the Moon (1973), Wish You Were Here (1975), and The Wall (1979), which are considered some of the greatest in rock history. Pink Floyd’s music often explores themes of mental illness, alienation, war, and the human condition.