Credit: Dimitrios Kambouris/

LeeLee Sobieski has welcomed a baby girl.

"Leelee delivered a bouncing, healthy girl late last night in NYC," her rep told Thursday afternoon. "Proud father is her fiance, menswear designer Adam Kimmel."

The baby's name? Louisanna Ray Kimmel.

In September, broke the news that the Public Enemies actress, 26, was expecting.

"I was really shocked," she told Us when she heard she was going to be a mom. "Then I was really happy and so in love."

To stay in shape, the NYC resident told Us she was meeting with her personal trainer, but she was keeping her workouts "nice and low, like nice long walks along the Hudson River."

Her pregnancy cravings?

"I eat less ice cream than I ever did because the baby takes up so much space," she told Us.