16:00The Official Chart on Radio 1 with Jack Saunders11/09/2015BBC Radio 1 Duration: 1 hour, 45 minutes Fri 11th Sep 2015, 16:00 on BBC Radio 1 EnglandGreg James counts down to the UK's new official No 1 as Sigala challenges Mr Bieber...GenresMusicPop & ChartBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online