Programmes across the BBC to help fundraise for Comic Relief.
Six celebrities travel through east Africa with Comic Relief to deliver crucial supplies.
Six acts compete in the final, all hoping to be crowned champion.
Five more acts perform, including the presenters of The One Show.
More acts compete for a place in the grand finale, including quiz geniuses the Chasers.
The first five celebrity acts sing and dance, competing for places in the grand finale.