Tinchy Stryder has topped the UK singles chart for the first time with new song 'Number 1'.
The track, which also features N-Duz, is the first time a chart topping single has featured the words number 1 in the title.
Last week's number one Calvin Harris fell to number two with 'I'm Not Alone'.
Meanwhile, in the album chart, Lady GaGa maintained her hold on number one with debut album 'The Fame'.
Depeche Mode were a new entry at number two with 'Sounds Of The Universe'.
Lady GaGa live
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