Tulisa Contostavlos has usurped Rosie Huntington-Whiteley and Cheryl Cole to be named the world's sexiest woman.
The X Factor judge, 23, who recently hit the headlines when a sex tape appeared online showing her sharing an "intimate moment" with a former boyfriend, tops the annual FHM list.
Two-time winner Cole takes second place, followed by pop star Rihanna and glamour model Rosie Jones.
Model and Transformers actress Huntington-Whiteley drops down to 18th place from top of the list in 2011.
Irish model and Celebrity Big Brother contestant Georgia Salpa is fifth, followed by US pop star and Russell Brand's ex Katy Perry.
Actress Megan Fox, glamour model Keeley Hazell, Friends With Benefits star Mila Kunis and Inbetweeners actress Emily Atack complete the top 10.
Pippa Middleton makes FHM's 100 Sexiest Women In The World list at 11, while her sister the Duchess of Cambridge is 32nd.
Singer Pixie Lott is 12th, followed by model Daisy Lowe (13), and The Saturdays singer Mollie King (14). Her bandmate Frankie Sandford is 19.
The top 20 is completed by Made In Chelsea star Millie Mackintosh (15), The Voice judge Jessie J (16), actress Zooey Deschanel (17), and model Kelly Brook (20).
Contostavlos said the award was "a lovely confidence boost".
"I'm proud of me and I am who I am. I know that I'm Marmite and I wouldn't want to be anything less or anything more, I'm just myself," she said.
"This is an award that will stay on the mantelpiece probably for the rest of my life."
The full list, voted for by FHM readers, comes with the June edition of FHM, on sale now.
FHM Sexiest Women In The World 2012 (top 20):
1. Tulisa Contostavlos
2. Cheryl Cole
3. Rihanna
4. Rosie Jones
5. Georgia Salpa
6. Katy Perry
7. Megan Fox
8. Keeley Hazell
9. Mila Kunis
10. Emily Atack
11. Pippa Middleton
12. Pixie Lott
13. Daisy Lowe
14. Mollie King
15. Millie Mackintosh
16. Jessie J
17. Zooey Deschanel
18. Rosie Huntington-Whiteley
19. Frankie Sandford
20. Kelly Brook
