{alltv} Mariah Carey & Nick Cannon Welcome Twins

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April 30 is double the pleasure for Mariah Carey and Nick Cannon. Not only did they welcome twins, but the couple celebrated their third wedding anniversary, too!

Carey, 42, delivered the babies Saturday at 12:07 p.m. EST at an undisclosed hospital in Los Angeles. Carey's representative, Cindi Berger, confirmed the births to The Associated Press, saying the baby girl was born first, weighing 5 lbs., 3 oz., and was 18 inches long; her brother was next, at 5 lbs. 6 oz., and was 19 inches.

And it was just as Cannon, 30, predicted. "I'm not trying to be a psychic, but we renew our vows every year so ... It's probably going to be in the hospital this year. I can feel it," Cannon said Thursday when he guest-hosted The Talk. "We got the minister coming in, so this gown will not be a wedding gown, but a hospital gown."

Berger tells PEOPLE "she's doing great" and they were listening to Carey's "We Belong Together" after the children were born. "I spoke to both of them and they are both completely overjoyed."

Asked if the birth was planned to coincide with her anniversary, she said: "No, not even Mariah could plan that."

"Nick was very nervous and Mariah was completely calm. Mariah thought it was another soft labor and Nick was driving her to the hospital and she very calm and the music was blasting," she added. "When they walked into the hospital, [Nick] was going the wrong way and they nurse redirected them to go the maternity ward, and I said to her, 'that's right out of I Love Lucy,' and she laughed."

Long before the births, the couple made no secret of their desire to have children. Last October when they first made Carey's pregnancy public, Cannon said that "the greatest gift on earth is a child."

Throughout Carey's pregnancy, the parents-to-be were cautious about revealing too many personal details since the couple had a "long journey" to parenthood, Cannon said in December.

That the singer was expecting twins was chattered about for months before Cannon finally confirmed it in December.

As for the origin of their babies' names, Cannon told PEOPLE in January that the couple had aimed for unique but not wacky. "They won't be crazy names like Carburetor or something," he promised. "But they're definitely unique."