16:00The Official Chart on Radio 1 with Jack SaundersGangnam Style climbs high up the chart....but how high?!BBC Radio 1 Duration: 3 hours Sun 23rd Sep 2012, 16:00 on BBC Radio 1 EnglandListen or watch as Reggie counts down the Top 10 to reveal the UK's new Official No 1 with all the videos streamed live online at bbc.co.uk/radio1.GenresMusicPop & ChartEntertainmentBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online