Katy Perry remains atop US singles chart

Katy Perry has retained her lead at the top of the US singles chart with 'Firework'.

The track, which reached the chart summit last week, marks the singer's third consecutive number one single from her sophomore set Teenage Dream.

Behind Perry, Rihanna climbs from three to two with 'What's My Name?', while Bruno Mars completes the top three by jumping from five to three with 'Grenade'.

Elsewhere in the top ten, Pink slips two to four with 'Raise Your Glass' and Black Eyes Peas dip from four to eight with 'The Time (Dirty Bit)'.

Further down the chart, T.I. and Eminem's 'That's All She Wrote' lands at 18, Diddy-Dirty Money vaults from 51 to 24 with 'Coming Home' and Keri Hilson reaches a new peak with 'Pretty Girl Rock', jumping from 62 to 45.

Other notable entries were Adele, who debuts at 68 with 'Rolling In The Deep', while Natasha Bedingfield re-enters the chart at 91 with 'Strip Me'.

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

1. (1) Katy Perry: 'Firework'
2. (3) Rihanna ft. Drake: 'What's My Name?'
3. (5) Bruno Mars: 'Grenade'
4. (2) Pink: 'Raise Your Glass'
5. (8) Ke$ha: 'We R Who We R'
6. (6) Rihanna: 'Only Girl (In the World)'
7. (7) Bruno Mars: 'Just the Way You Are'
8. (4) Black Eyed Peas: 'The Time (Dirty Bit)'
9. (9) Nelly: 'Just a Dream'
10. (10) Trey Songz feat. Nicki Minaj: 'Bottoms Up'