Pink Floyd are a British band noted for progressive rock music, philosophical lyrics, classical rock compositions, sonic experimentation, innovative cover art and elaborate live shows. One of rock music's most successful and influential acts, the group have sold an estimated 73.5 million albums in the U.S and over 200 million albums worldwide.

Pink Floyd had modest success in the late-1960s as a psychedelic band led by Syd Barrett. Barrett's increasingly erratic behaviour eventually forced his colleagues to replace him with guitarist David Gilmour and the band went on to record several elaborate concept albums, achieving worldwide success with 1973's The Dark Side of the Moon, 1975's Wish You Were Here, 1977's Animals, and 1979's The Wall, among the best-selling, most critically acclaimed, and enduringly popular albums in rock music history. In 1985, singer and bassist Roger Waters declared Pink Floyd defunct. The remaining members continued recording and touring under the name, eventually reaching a settlement with Waters giving them rights to the name and most of the songs.

Waters performed with the band on 2 July 2005 at the London Live 8 concert, playing to Pink Floyd's biggest audience ever. On 3 February 2006, Gilmour gave an interview to the Italian newspaper La Repubblica which indicated the band would no longer tour or produce any new material, although various members still plan on producing solo or collaborative material. The possibility of an appearance similar to Live 8 has not been ruled out by either Mason or Gilmour.