The track advances from four to one after selling 217,000 downloads in its tenth week on the tally.
Meanwhile, LMFAO's 'Party Rock Anthem' remains at number two, and Foster The People's 'Pumped Up Kicks' rolls from seven to number three.
Bad Meets Evil's 'Lighters' jumps from six to four, and Pitbull, Ne-Yo, Afrojack and Nayer's 'Give Me Everything' re-enters the Top 10, rising from 11 to nine.
Further down the chart, Rihanna's 'Cheers (Drink To That)' vaults from 17 to 11, Lady GaGa's 'You & I' leaps from 35 to 16 following her performance at this year's MTV Video Music Awards, as does Adele's 'Someone Like You', shifting from 34 to 19.
Miranda Lambert's Pistol Annies debut at 55 with 'Hell on Heels', and Game's 'Martians Vs Goblins' enters at 100 following the release of his chart-topping The R.E.D. Album.
The Top 10 singles in full (click where possible for our reviews):
1. (4) Maroon 5 ft. Christina Aguilera: 'Moves Like Jagger'
2. (2) LMFAO: 'Party Rock Anthem'
3. (7) Foster The People: 'Pumped Up Kicks'
4. (6) Bad Meets Evil ft. Bruno Mars: 'Lighters'
5. (1) Katy Perry: 'Last Friday Night (T.G.I.F)'
6. (5) Nicki Minaj: 'Super Bass'
7. (8) Lil Wayne: 'How To Love'
8. (9) One Republic: 'Good Life'
9. (11) Pitbull ft. Ne-Yo, Afrojack & Nayer: 'Give Me Everything'
10. (-) Gym Class Heroes ft. Adam Levine: 'Stereo Hearts'
Watch the 'Moves Like Jagger' music video below: