Rihanna's tummy is the sexiest!

R&Bsinger Rihanna has topped a new poll of the ���Sexiest Celebrity Stomachs inthe World���.
The 20-year-old Barbados-born beauty,renowned for her revealing stage outfits, came first in the poll conducted bystomach-flattening supplement AntiBloat, reportsChina Daily.
Second on thelist was Keira Knightley, who is famous for wearing midriff-flashing costumes,and who has bared her taut abs in movies includingBend It Like Beckham andKing Arthur.
Dame HelenMirren, who recently wowed onlookers with her trim physique when she donned abikini while on holiday in the Italian Riviera, came third in thepoll.
Sienna Miller, who showed off her enviable toned figure in askimpy bikini while on holiday recently, shared the fourth spot with Liz Hurley.
Rounding off the top five was Jemima Khan, an English socialiteknown due to her relationships as Hugh Grant's ex-girlfriend, the former wife ofPakistani cricketer Imran Khan, and a daughter of late billionaire JamesGoldsmith.
"The survey results reveal that a sexy stomach isn'tgoverned by age, which is good news for all those wanting to tone up or maintaina flat tummy,��� AntiBloat spokesperson Jalal Janmohamedsaid.
Sexiest Celebrity Stomachs inthe World:
1. Rihanna
2. Keira Knightley
3. DameHelen Mirren
4. Sienna Miller and Liz Hurley
5. Jemima Khan