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 belly dancing 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.'

Belly dancing 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."