16:00The Official Chart on Radio 1 with Jack Saunders10/05/2015BBC Radio 1 Duration: 3 hours Sun 10th May 2015, 16:00 on BBC Radio 1 EnglandClara Amfo counts down the Top 40 and reveals the UK's new official Number 1.GenresMusicPop & ChartBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online