16:00The 4 O'Clock ShowChannel swimming, hula dancing and Mel CBBC Radio 4 Extra Duration: 1 hour Wed 21st Jan 2015, 16:00 on BBC Radio 4 ExtraMel Giedroyc follows an attempt to swim across the English Channel and has a go at a spot of hula dancing, and former Spice Girl Mel C tells us two of her favourite songs.GenresEntertainmentBrandThe 4 O'Clock Show Source: BBC Online