It's a Girl, a Boy, and a Girl for These 3 Celebs Kelly Clarkson, Jenna Fischer, and Jade Jagger give birth By Evann Gastaldo, Newser Staff Posted Jun 15, 2014 7:58 AM CDT 3 comments Comments In this Feb. 10, 2013 file photo, Kelly Clarkson performs on stage at the 55th annual Grammy Awards, in Los Angeles. (Photo by John Shearer/Invision/AP) (Newser) – Huzzah! Three new celebrity babies have entered the world: Kelly Clarkson announced the birth of her daughter with hubby Brandon Blackstock yesterday on Twitter, ETOnline reports. "Our baby girl River Rose Blackstock arrived on June 12th!" she wrote. "Thank you everyone for all of your well wishes! Brandon and I are on cloud 9!!" She's Clarkson's first child, and Blackstock's third. Jade Jagger gave birth to a baby boy Friday, the New York Daily News reports. It's the third grandchild for her dad, Mick Jagger—who also just became a great-grandfather in April, when Jade's 21-year-old daughter Assisi gave birth to her own child. Jenna Fischer confirmed the birth of her daughter with husband Lee Kirk to E! Friday night. "We are pleased to announce the birth of our daughter Harper Marie Kirk," says a statement from the couple. "Born May 25, 2014. The family is doing great. We are happy, healthy and sleepy." They also have a 2-year-old son.