The new parents broke the news Thursday morning with a little help from Guthrie's fellow
"Michael send around an email saying most of those 8 pounds, 5 ounces are in the cheeks," Lauer said.
Guthrie was right there with a couple of early morning tweets as well.
"My 3am wake up call sounds a lot different now. Sweeter...," she wrote, adding later, "Every new parent must want to shout their happy news to the world. So lucky we got to do it on! We are bursting with joy.