Pink Floyd are one of the most successful British bands of all time. Known throughout the 60s and 70s for their psychedelic and progressive rock, sonic experimentation, and incredible live shows, they have sold over 200 million records worldwide. The band comprised of Syd Barrett, Nick Mason, Roger Waters, Richard Wright, and David Gilmour, although Syd Barrett left in 1968. Pink Floyd had a number of successful albums, but none matched the huge global sales of "Dark Side of the Moon". With an estimated 44 million albums sold, this is one of the best selling albums of all time.