Pink Floyd was an English rock band that received international recognition for its progressive psychedelic rock music. The group evolved into pioneers of progressive rock and symphonic music.

Pink Floyd is known for its philosophical lyrics, classical rock compositions, experiments with sound, graphic and artistically innovative cover designs and, not least, for many spectacular live concerts.

As one of the most successful and influential bands in rock music, Pink Floyd sold more than 300 million albums worldwide. Syd Barrett, Roger Waters and later band member David Gilmour knew each other from school in Cambridge, while the other members Mason and Wright studied architecture with Roger Waters at Polytechnic on Regent Street in London.

Pink Floyd initially had modest success in the late 60s as a psychedelic band led by Syd Barrett at the time. Barrett’s increasing unreliability and his difficult behavior forced the other band members to add a new guitarist and lead singer. That became David Gilmour, who would later completely replace Syd Barrett. After Barrett’s departure, singer and bass guitarist Roger Waters gradually became band leader and the main songwriter. This led to several globally known albums such as The Dark Side of the Moon (1973), Wish You Were Here (1975), Animals (1977) and The Wall (1979).
 
These are Pink Floyds top 20 greatest songs:
 

1. Wish You Were Here

2. Comfortably Numb

3. Shine On You Crazy Diamond

4. Another Brick In the Wall, Pt. 2

5. Time

6. Echoes

https://www.youtube.com/watch?v=bnC7TdkRnP4

7. Money

8. Hey You

9. The Great Gig in the Sky

10. One of these Days

11. See emily Play

12. Arnold Layne

13. High Hopes

14. Dogs

15. Us and Them

16. Brain Damage

17. Have a Cigar

18. Learning to Fly

19. Pigs (Three Different Ones)

20. Welcome to the Machine