Music
Rex Features
Perry, a 23-year-old singer-songwriter from California, scores her first No.1 with 'I Kissed A Girl', while Coldplay's 'Viva La Vida' tumbles to sixth position.
Coldplay are one of three British acts in the top six this week, with Leona Lewis's 'Bleeding Love' climbing to three and Natasha Bedingfield's 'Pocketful of Sunshine' rising to a new peak of five.
Meanwhile, the Pussycat Dolls leap from 18 to nine with 'When I Grow Up' to score their fourth US top ten hit.
The top ten singles in full (click for our reviews):
1. (2) Katy Perry: 'I Kissed A Girl'
2. (3) Lil Wayne ft. Static Major: 'Lollipop'
3. (4) Leona Lewis: 'Bleeding Love'
4. (5) Rihanna: 'Take A Bow'
5. (6) Natasha Bedingfield: 'Pocketful Of Sunshine'
6. (1) Coldplay: 'Viva La Vida'
7. (8) Chris Brown: 'Forever'
8. (11) Plies ft. Ne-Yo: 'Bust It Baby Part 2'
9. (18) Pussycat Dolls: 'When I Grow Up'
10. (70) Miley Cyrus: '7 Things'
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