Julianna Margulies and Keith Lieberthal by Theo Wargo/WireImage.com Julianna Margulies and Keith Lieberthal by Theo Wargo/WireImage.com
Julianna Margulies (

ER alumna, of course, and also the star of the someday-coming Canterbury's Law) gave birth to her and husband Keith Lieberthal's first child, a son named Kieran, says Us. Jennifer Lopez by one unconfirmed online account delivered her twins - one with a stem, one without - on Thursday in Long Island. But again, entirely unconfirmed.