Premise: Pink Floyd . They gained popularity performing in London 's underground music scene during the late 1960s , and under Barrett 's leadership released two charting singles and a successful debut album , The Piper at the Gates of Dawn ( 1967 ) . 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 .
Hypothesis: Pink Floyd played in London.
Label: NEUTRAL