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Listen or watch as Greg counts down the Top 10 to reveal the UK's new Official No 1.
BBC Radio 1, BBC Radio 1 N. Ireland, BBC Radio 1 Scotland, BBC Radio 1 Wales
Alexandra Burke joins Reggie as he counts down the Top 40.
Stooshe, Tinchy Stryder and Marcus Collins battle it out in the week's chart.
Listen or watch as Reggie counts down the Top 10 to reveal the UK's new Official No 1.