Music
The 29-year-old singer, real name Alecia Moore, also leads the US singles chart this week.
Kid Rock remains at two with 'All Summer Long', while last week's number one, 'Just Dance' by Lady GaGa, slips to three.
Notable gains come from Ne-Yo, who jumps from 17 to eight with 'Closer', and Kings Of Leon, who climb from 15 to nine with 'Sex On Fire', currently the UK's number one single.
The top ten singles in full (click where possible for our reviews):
1. (3) Pink: 'So What'
2. (2) Kid Rock: 'All Summer Long'
3. (1) Lady GaGa: 'Just Dance'
4. (5) Jason Mraz: 'I'm Yours'
5. (5) Metro Station: 'Shake It'
6. (6) Rihanna: 'Disturbia'
7. (7) Katy Perry: 'Hot N Cold'
8. (17) Ne-Yo: 'Closer'
9. (15) Kings Of Leon: 'Sex On Fire'
10. (13) MGMT: 'Electric Feel'
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