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 Chartjackers have picked the lyrics, now all they need is a tune. Rifling through the overwhelming response from the community is quite a task, so the boys enlist some celebrity help.