16:00The Official Chart on Radio 1 with Jack SaundersDev sits in for GregBBC Radio 1 Duration: 1 hour, 45 minutes Fri 18th Dec 2015, 16:00 on BBC Radio 1 EnglandDev sits in for Greg James to reveal the UK's new official No 1 as as X-Factor takes on Bieber!GenresMusicPop & ChartBrandThe Official Chart on Radio 1 with Jack Saunders Source: BBC Online
