16:00The Official Chart on Radio 1 with Jack SaundersSigma Battle The Vamps For Number 1BBC Radio 1 Duration: 3 hours Sun 13th Apr 2014, 16:00 on BBC Radio 1 EnglandBoth Sigma and The Vamps join Jameela as they battle to be the UK's Official Number 1GenresMusicPop & ChartBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online
