NEW YORK (Reuters) - Grammy Award winning singer Mariah Carey is expecting twins, her husband told a U.S. radio show on Thursday.

He said on his radio show that Carey first told President Barack Obama and first lady Michelle Obama about the twins after a recent performance. Carey announced in October she was pregnant.

"She shared with the President and the First Lady that we are having twins," the 30-year-old rapper and TV host said, but he did not reveal the sex of each twin. "I haven't even told my wife I was doing this, so I am probably going to get yelled at for not getting permission."

The couple had delayed telling people about the pregnancy and expected twins due to a miscarriage Carey suffered two years ago, he said.

A recent ultrasound revealed, "everything is A-OK, both babies are healthy, in tip-top shape. The doctors are extremely happy. We are extremely happy," Cannon said.

(Reporting by Christine Kearney, editing by Bob Tourtellotte) 2010 Reuters News Service.