Pink Floyd included Gilmour, Wright, Mason, and Waters.
Pink Floyd . Pink Floyd were founded in 1965 by students Syd Barrett on guitar and lead vocals , Nick Mason on drums , Roger Waters on bass and vocals , and Richard Wright on keyboards and vocals . Guitarist and vocalist David Gilmour joined in December 1967 ; Barrett left in April 1968 due to deteriorating mental health . After nearly two decades of acrimony , Gilmour , Wright , and Mason reunited with Waters in 2005 to perform as Pink Floyd in London as part of the global awareness event Live 8 ; Gilmour and Waters later stated they have no plans to reunite as a band again .