According to the organisers, the 30-year-old is blessed with "the Holy Grail of Hindquarters", reports thesun.co.uk.
The second place in the poll has been occupied by actress-singer Jennifer Lopez, and Beyonce Knowles took the third position.
Actress Jessica Biel was given the fourth position for her "perfectly plump and toned" derriere, followed by Lady Gaga in the fifth spot.
"Waka waka" girl Shakira, popular for her hip movements in her music videos, stood sixth, and Rihanna took the seventh spot for "being blessed".
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