One Direction were a boy band who, for reasons not entirely clear, were tapped by BBC Three to appear on Doctor Who Live: The Afterparty from the set of their "1D Day" event in Los Angeles. They were supposed to be asking questions of Matt Smith and others about The Day of the Doctor.
However, they hadn't even seen the episode because of their work commitments. Worse, they were unable to be understood because of a 15-second delay in the audio between London and LA. The event was the seminal moment of the show and was widely cited by fans and the press alike as being one of the key reasons the show as a whole failed.