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"30 Rock" star, Tina Fey, 41, and her composer husband Jeff Richmond welcomed baby girl Penelope Athena into the world Wednesday, Aug. 10, her rep confirms to

PHOTOS: Hollywood's Baby Boom

Fey announced the news of her second pregnancy during a taping of "The Oprah Winfrey Show." Baby Penelope joins big sister Alice, 5.

 PHOTOS: Stars Who Get Pregnant at 40 and beyond