17:00The Official Chart on Radio 1 with Jack Saunders09/10/2011BBC Radio 1 Duration: 2 hours Sun 9th Oct 2011, 17:00 on BBC Radio 1 ScotlandReggie Yates counts down the latest official Top 40 to reveal the UK's new No 1 with help from Christina Perri and Marina and The Diamonds.GenresMusicPop & ChartExperimental & NewEntertainmentBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online