Pink Floyd were an English rock band formed in London in 1965. Gaining a following as a psychedelic pop group, they were distinguished for their extended compositions, sonic experimentation, philosophical lyrics and elaborate live shows, and became a leading band of the progressive rock genre. They are one of the most commercially successful and influential bands in popular music history.

Pink Floyd were one of the first British psychedelia groups, and are credited with influencing genres such as progressive rock and ambient music. Four albums topped US or UK record charts; the songs "See Emily Play" (1967) and "Another Brick in the Wall, Part 2" (1979) were their only top 10 singles in either territory. The band were inducted into the US Rock and Roll Hall of Fame in 1996 and the UK Music Hall of Fame in 2005. By 2013, they had sold more than 250 million records worldwide, with The Dark Side of the Moon and The Wall two of the best-selling albums of all time.