Meanwhile, Hamilton Black has realised that his son is the mystery singer that all of London is talking about, after the youth club members have done some pirate broadcasts to promote their show. So, although he has just bought the theatre where the show is to take place, in order to be able to stop it, the proud father decides that the show must go on. At the end, he joins the youth club members on stage, dancing and singing, after having promised to build them a new youth club.