Katy Perry stays on top in US chart

Katy Perry continues her reign at the top of the US Billboard chart with 'California Gurls'.

The song spends a third consecutive week at number one, with Usher's 'OMG' and B.o.B's 'Airplanes' holding steady at two and three respectively.

Also in the top ten, Drake leaps from ten to five with 'Find Your Love', and Taio Cruz slips from seven to ten with 'Break Your Heart' after 17 weeks on the chart.

Elsewhere, Enrique Iglesias reaches a new peak with 'I Like It', jumping from 32 to 26, and Taio Cruz features again with 'Dynamite', which reaches a new high of 31 from last week's 45.

VV Brown continues to climb the chart with 'Shark In The Water', vaulting from 83 to 77.

The top ten singles in full (click where possible for our reviews):

1. (1) Katy Perry: 'California Gurls'
2. (2) Usher: 'OMG'
3. (3) B.o.B ft. Eminem & Haley Williams: 'Airplanes'
4. (4) Billionaire: Billionaire
5. (10) Drake: Find Your Love
6. (6) Ke$ha: 'Your Love Is My Drug'
7. (7) Lady GaGa: 'Alejandro'(5) B.o.B ft. Bruno Mars: 'Nothin' On You'
8. (14) Mike Ponser: 'Cooler Than Me'
9. (8) Eminem: 'Not Afraid'
10. (7) Taio Cruz ft. Ludacris: 'Break Your Heart'