16:00The Official Chart on Radio 1 with Jack SaundersJessie J and The MaccabeesBBC Radio 1 Duration: 3 hours Sun 15th Jan 2012, 16:00 on BBC Radio 1 EnglandReggie Yates counts down the latest official Top 40 to reveal the UK's new No 1, plus the latest news and gossip from those behind the chart headlines.GenresMusicPop & ChartEntertainmentBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online