Premise: Pink Floyd were an English rock band formed in London . 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 . Syd Barrett . Best known as a founder member of the band Pink Floyd , Barrett was the lead singer , guitarist and principal songwriter in its early years and is credited with naming the band .
Hypothesis: Syd Barrett was in a band.
Label: ENTAILMENT