Janet Jackson has reportedly got engaged.

The 46-year-old singer accepted billionaire boyfriend Wissam Al Mana's proposal earlier this year and the smitten couple are set to tie the knot in a lavish ceremony in Qatar next year.

According to Us Weekly magazine, Wissam, 37, gave Janet ''a huge, expensive ring'' but she keeps it locked up because ''she's afraid it will get lost''.

Wissam doesn't want any expense spared when it comes to the wedding - which will reportedly ''cost millions'' - and is flying all of Janet's friends and family in from America on private jets.

Another source added: ''He wants to get a top chef to create a custom menu.''

Once the wedding is over, Janet - who has been dating Wissam for around two years - is keen to start trying for a family.

The source said: ''She wants kids. If she can't have them, she will adopt.''

Janet has been married twice before, once to R&B singer James DeBarge and the other time to music video director Rene Elizondo.

Before Wissam, she had an on/off seven-year relationship with record producer Jermaine Dupri.