Beyonce's mother has gone on US television to deny reports that her daughter is expecting her first child.
The singer, 29, who is married to rapper Jay-Z, was said to be shocked but pleased about her pregnancy.
But her mother Tina Knowles told The Ellen DeGeneres Show: "It's not true".
On a preview clip posted on website TMZ, Ellen asked her: "The rumours are that Beyonce is pregnant. Are you going to be a grandmother again?"
Tina responded: "I heard that but I'm here to clear the rumours up."
She joked: "The truth is that it's not Beyonce that's pregnant. It's me."
She added: "I'm kidding. I'm 56. No, no, it's not true, not right now. I'm looking forward to it. With all the rumours by now I'd have about five or six grandchildren."
The full interview with Tina Knowles will air in the US later this week.