New mom Beyoncé took the night off from changing diapers and escaped to the glamorous Met Gala in New York on Monday. “Entertainment Tonight’s” Nancy O’Dell snagged the only red carpet interview with the World’s Most Beautiful Woman, who wowed in a Givenchy Haute Couture gown.

The 30-year-old singer was beaming as she spoke of her four-month-old daughter Blue Ivy Carter, who was back home with husband Jay-Z and mother Tina Knowles.

“I have such a full life,” she gushed. “I feel like now I know the reason that I was born.”

She wants to add more members to her family, but it probably won’t happen anytime soon.

“Of course. “I definitely want to have more,” she said. “I don’t know how many. God knows; I don’t know yet.”

If you’re wondering how she got back in shape so quickly, it’s no fluke.

“I’ve been working really hard,” said B, who’s been spending time with a trainer. “There are no secrets—discipline.”

Beyoncé will return to the stage for the first time in nearly a year with a series of shows at the $2.4 billion Revel resort over Memorial Day weekend. A fourth show was recently added for Monday, May 28.