Photos Of The Week

1. Rihanna

A video still emerges from Rihanna's new video 'S & M' Pic: Facebook

2. Cheryl Cole

Cheryl Cole reveals a new tattoo on the red carpet at the National TV Awards at the O2.

3. Katie Waissel

Katie Waissel celebrates her 25th Birthday at Proud Camden on January 27, 2011 in London Pic: Getty

4. Plan B

Plan B performs on stage during the Big Day Out Festival at the Sydney Showground on January 26, 2011 in Sydney, Australia

5. Katy Perry

Oh Honey' - Katy Perry on the set of "How I Met Your Mother" on the CBS Television Network.

6. Sarah Harding

Sarah Harding attends the MTV Staying Alive Fundraising and farewell event

Jessie J performs live at Koko in London

7. Jessie J

Jessie J performs live in some more amazing tights at Koko in London

8. Justin Bieber Doll

A new range of Justin Bieber dolls by Vivid on display at Toy Fair 2011 at Olympia exhibition centre on January 25, 2011 in London, England.

9. Usher in Paris

Usher performs in Paris on the eve of arriving in the UK for more dates on his OMG tour

10. Justin Bieber and Ozzy Osbourne

Justin Bieber with rocker Ozzy Osbourne. The 16-year-old teen heartthrob and the 62-year-old heavy metal star have teamed up to film a commercial for US electronics retailer Best Buy.

11. Tinie Tempah

Tinie Tempah performs live at Koko at an event to highlight the best of young British music.

12. Tinie Tempah

Tinie Tempah denies he's going to play at the Royal Wedding.

13. Cheryl Cole and Matt Cardle

Cheryl Cole and Matt Cardle on stage at the National Television Awards to accept the award for

14. NE-YO live on stage

U.S. singer Ne yo perform during his concert in Jakarta, Indonesia,

15. Kelis

Kelis hosts "Marquee Mondays" at Marquee Nightclub at The Cosmopolitan of Las Vegas in Las Vegas, USA.

16. National Television Awards 2011

Simon Cowell alongside Cheryl Cole and fiance Mezhgan Hussainy at the National TV Awards.

17. Tinchy Stryder

Tinchy Stryder performs live at Koko in London

18. Bruno Mars album launch

Bruno plays an intimate gig at the Cafe de Paris in London.

19. Emma Bunton

Former Spice Girl Emma Bunton flashes her engagement ring after announcing she's tying the knot with Jade Jones...live on Dancing on Ice.

20. Stacey Solomon and Shaun Ryder

Stacey Solomon and Shaun Ryder during rehearsals for the National TV Awards

21. Backstreet Boys and The New Kids On The Block

Members of the Backstreet Boys and the New Kids on the Block (L-R) Brian Littrell, Jonathan Knight, Howie Dorough, Donnie Wahlberg, Jordan Knight, Joey McIntyre and Danny Wood leap at the base of the Green Monster after a press conference on January 26, 2011 at Fenway Park in Boston, Massachusetts.