18:00Radio 1 Breakfast with Greg JamesGreg reveals his Comic Relief Hell and High Water Challenge!!!BBC Radio 1 Duration: 1 hour Tue 22nd Jan 2013, 18:00 on BBC Radio 1 EnglandGreg reveals his Comic Relief Hell and High Water Challenge!!! Show more GenresMusicPop & ChartEntertainmentBrandRadio 1 Breakfast with Greg James Source: BBC Online