16:00The Official Chart on Radio 1 with Jack Saunders23/01/2011BBC Radio 1 Duration: 3 hours Sun 23rd Jan 2011, 16:00 on BBC Radio 1 EnglandReggie Yates counts down the latest official Top 40 to reveal the UK's new number 1 first, plus the latest news and gossip from those behind the chart headlines.GenresMusicPop & ChartExperimental & NewEntertainmentBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online