Celine Dion pregnant with twins

Singer Celine Dion is 14 weeks pregnant with twins after years of trying to expand her family, her representative said Sunday.

Dion, 42, and her husband-manager Rene Angelil, 68, will find out next month the gender of their twins, representative Kim Jakwerth said.

The pregnancy was the result of her sixth in-vitro fertilization attempt, Jakwerth said. Dion turned to acupuncture therapy to improve her chances of getting pregnant, she said.

Angelil is the father, she said.

The couple already has a 9-year-old son, Rene-Charles.

The five-time Grammy winner has sold 200 million albums around the world, according to her website. A new Harris Poll released in May named Dion, a Canadian, as America's favorite singer.

Dion, who completed a world tour last year, will return to Las Vegas, Nevada, next March to begin a three-year residency at The Colosseum at Caesars Palace. -CNN