Janet Jackson converts to Islam ahead of $20m wedding to Arab billionaire Wissam Al Mana

Janet Jackson and her fiancé Wissam Al Mana are reportedly planning to get married in Doha, Qatar in 2013.

The couple hope to tie the knot in Doha where the billionaire was born and are making arrangements for the ceremony to take place in 2013.

Janet and Wissam will be wedded in a Muslim ceremony. A renown Turkish author, Adnan Oktar (aka Harun Yahya), is also making the claim that the 46-year-old Janet Jackson has converted to Islam — as did her brother, Michael Jackson — and is choosing to keep her new religion a secret from her fans.

According to an insider the wedding will be "one of the biggest, most memorable extravaganzas in recent history".

The source added to National Enquirer: "They have tentatively set a late 2013 wedding date. But they are still working out the details and the exact day."

They will reportedly spend $3 million to fly in their 500 wedding guests from all over the world, while Wissam wants to give all attendees a $10,000 Rolex watch each as a thank you for attending.

The insider added: "Wissam is going to splash big when he marries Janet. It's going to be the wedding of the century."

Janet and Wissam allegedly got engaged last year after Wissam, a billionaire whose family has extensive reaches in the real estate and media spheres, proposed to her with a stunning 15 carat diamond ring.

The couple met in December of 2009 after Janet gave a special performance in the Middle East and the rest, so it seems, is history. The couple was supposedly shooting for a 2011 wedding, but they ultimately tempered their excitement and chose to hold off for a couple of years so they could have time to plan the festivities.

Janet has been dating Wissam - who is almost a decade younger than her - since summer 2010.

The 46-year-old singer - the sister of the late Michael Jackson - has previously insisted there is nothing wrong with dating younger men as long as the couple is happy.

Janet - who was in a seven-year relationship with music producer Jermaine Dupri - said: "My mother always raised us to believe that age was just a number. All of us - my sisters, my brothers - we'll just tell you our ages because it's all about where you are mentally and how you feel about yourself. It doesn't matter."