The track outperformed 'Rockstar' by the N-Dubz and Queen members to snatch a third non-consecutive week at number one.
'Next To Me' by Emeli Sandé slips from the runner-up slot to third place, while Flo Rida's Sia collaboration 'Wild Ones' and 'Starships' by Nicki Minaj, up two from last week, round out the top five.
Former number one 'Hot Right Now' by DJ Fresh and Rita Ora is down three to six and Sia makes a second appearance on David Guetta's 'Titanium', which is at seven from its previous finish of five.
Kelly Clarkson's 'Stronger' and 'Drunk' from Ed Sheeran bump up five and two respectively to eight and nine, as Jessie J's 'Domino' slides four to ten and 'Turn Me On' by the team of David Guetta and Nicki Minaj trips from eight to 11.
At 12 this week is 'Twenty Seven Million', a new entry from Christian worship leader Matt Redman and Manchester hip-hop outfit LZ7. The charity track has been released in partnership with The A21 Campaign, which provides aid to victims of human trafficking.
Also debuting on the chart at 13 is 'Ray Charles' by Chiddy Bang, while Gym Class Heroes and Neon Hitch are down from nine to 15 with 'Ass Back Home'.
The fallers continue further down, with Alyssa Reid's 'Alone Again' sliding five to 17 and 'T.H.E. (The Hardest Ever)' by the trio of will.i.am, Jennifer Lopez and Mick Jagger crashing from ten to 18.
Lil Wayne and Bruno Mars snatch the last spot in the top 20 after climbing one with 'Mirror', denying new entries from Madeon and Arctic Monkeys a spot in the upper numbers.
Madeon's debut single 'Icarus' is at 22 this week and the Suck It And See band land at 23 with 'R U Mine'.
Source: Official Charts Company
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