Party Rock Anthem recorded sales of 85,744 copies, lifting its career tally to 316,478.
It had been overtaken in early midweek sales flashes by Unorthodox but rising grime star Wretch 32's second hit had to settle for number two with sales of 66,048 copies,
Unorthodox - which also features Example - surpassed Wretch 32's debut hit, Traktor (feat. L), which debuted and peaked at number five in January.
On release only since Thursday, Beyonce's Run The World (Girls) debuted at ...
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