The `California King Bed` hitmaker is being given lessons in the exotic art by a professional dancer from Mexico in a bid to keep in shape - and friends would not be surprised to see some of her new moves turn up on the European leg of the singer`s `Loud` tour in September.
A pal of the Bajan beauty told the Daily Mirror newspaper: "She loves bellydancing and has been getting all her dancers to join in. They`ve even had a few private Arabian-themed parties.
"We shouldn`t be surprised to see a little of this influence when Rihanna goes on tour later this year."
Bellydancing appears to be a more conventional way for the 23-year-old singer to keep fit, but Rihanna - who is currently on her `Loud` tour in the US - has previously revealed she stays in shape by "walking for miles" through airports when she is going from place to place playing gigs.
She said: "I keep fit by walking through so many airports. You end up walking for miles in those places!"
Rihanna also has another reason for getting fit because she is looking for a man, recently explaining she wants a guy who will "earn" her love.
She added: "I`m open to love. But guys should have to earn it. Because the minute they get it, they want something else.
"Men are like hunters; they like the chase. So you have to keep `em guessing. Actually, I`m like that too. I get bored quickly. So if someone can make me laugh, that`s the best."