When we did it we recorded the songs in the studio and then the presenter spliced them in to the interview. It was interesting cos we popped them off one after another and the presenter (Michael Brothwell) asked us if we wanted to hear them back, No! was the reply, which was followed by a Michael anecdote of one performer who spent all morning singing and playing back and then doing it again, kinda makes the live bit a bit false. Anyway ours was as live as it gets without actually sitting around the mics and singing during the interview.