YouTube legends Johnny, Jimmy, Charlie and Alex have just 10 weeks to crowd-source a number one single for Children in Need. Our Chartjackers have no money, no music industry experience, and are not allowed to write, record or perform the single themselves. Every aspect - from title to lyrics, from musicians to producers - must be blagged from the BBC Switch audience and the wider internet community. Four ordinary lads from the UK achieving the extraordinary through the power of the internet.

The boys have whittled down the people who auditioned for the band to their favourite few, and now they actually have to pick the band. Before making this momentous decision, they seek advice from a celebrity. Show less