Pharrell Williams has retained the UK number one spot for a third week with 'Happy'.
The Despicable Me 2 track shifted nearly 118,000 copies over the last seven days - its best weekly sales figure to date - to fend off competition from Pitbull and Ke$ha.
'Happy' has now sold over 500,000 copies in the UK since it was released in November.
Pitbull and Ke$ha's 'Timber' is unmoved at number two this week, while Avicii's 'Hey Brother' and Jason Derulo's 'Trumpets' are non-movers at three and four respectively.
Elyar Fox scores this week's highest new entry on the UK Top 40 with his debut single 'Do It All Over Again', which debuts at number five.
Fuse ODG's 'Million Pound Girl (Badder Than Bad) is at six, and Ellie Goulding drops one place to number seven with 'How Long Will I Love You'.
Matrix & Futurebound's Max Marshall-assisted 'Control' is at eight this week, while Eminem and Rihanna's 'The Monster' and 'Turn Back Time' from Sub Focus follow at nine and ten.
Tinie Tempah and Labrinth climb 15 places this week with 'Lover Not A Fighter' at number 27, while Beyoncé's 'XO' rises eight spots to make its UK Top 40 debut at number 37.
Source: Official Charts Company
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