Chartbuster R&B singer Rihanna has topped the list of the ‘Sexiest Celebrity Stomachs in the World’ in a poll conducted by stomach-flattening supplement AntiBloat.

Fans will recall that Rihanna, 20, who took the top spot from British actress Keira Knightley, 23, also has her legs are listed as the best celebrity legs. The survey, which was conducted among nearly 2500 adults, yielded not just the youngsters as possessing the sexiest tummies–Oscar winner Dame Helen Mirren, 63, claimed the third spot. (Whatever happened to Jessica Alba, Kelly Brook, Kate Beckinsale… ???)

While Mirren impressed onlookers in a bikini while on holiday in the Italian Riviera, Sienna Miller, 26, who showed off her toned figure in a skimpy bikini while on holiday recently, shared the fourth place with Elizabeth Hurley, 43. English socialite and writer Jemima Khan, 34, also known for her relationship with actor Hugh Grant, made it as the fifth sexiest tummy in the celebrity world.

In the final tally, the top five sexiest celebrity stomachs were:

1. Rihanna
2. Keira Knightley
3. Dame Helen Mirren
4. Liz Hurley and Sienna Miller
5. Jemima Khan

Now, how well do you know your celebrities? See the thumbnail images of these six celebrities’ stomachs? Well, they’re scrambled… can you figure out which stomach belongs to who from the top five listed above? For the right answer, just click on the thumbnail to see the full image of the celebrity.

1	2	3
4	5	6

All this is cool, but how on Earth COULD they have missed:

Guess WHO???