The 46-year-old singer became engaged and married the 37 year-old businessman last year but kept the news under wraps.
Janet and Wissam sent a statement concerning the extravagant wedding rumors.
“The rumours regarding an extravagant wedding are simply not true. Last year we were married in a quiet, private, and beautiful ceremony.
Our wedding gifts to one another were contributions to our respective favourite children’s charities. We would appreciate that our privacy is respected and that we are allowed this time for celebration and joy.’
It is a third marriage for the Janet who is known for keeping her private life from the media, rarely speaking about her ex-husbands.
She married soul singer James DeBarge in 1984, and the marriage was annulled a year later.
Her 1991 marriage to music video director Rene Elizondo ended in divorce in 2000.