Family and friends are saying rapper Jay-Z and girlfriend Beyonce Knowles were married on Friday, but Jay-Z wasn't giving away any secrets Saturday night during his concert in North Carolina. The singer appeared on stage without a wedding ring and didn't mention his new bride or the wedding.

Co-headliner Mary J. Blige couldn't stay mum on the subject, however, and when she took the stage as part of the "Heart of the City" tour she shouted-out to the audience, "Congratulations to my man, Jay-Z, and my girl B."

Besides Blige's comment, no other comments were made about the nuptials. Jay-Z, 38, and Beyonce, 26, have been together since 2002 but have always remained quiet about their relationship. Although their reps won't confirm a wedding took place between the two on Friday, friends say it did and it was a private affair.

The ceremony was followed by a party at the rapper's Tribeca apartment in which Beyonce's mother Tina Knowles, her father and manager Matthew, her sister Solange and her Destiny's Child mates Kelly Rowland and Michelle Williams attended. Gwyneth Paltrow, a friend of Jay-Z and Beyonce's, also attended.