Duggars Welcome First Grandchild

Michelle and Jim Bob Duggar, who are expecting their 19th child in the spring, welcomed their first grandchild on Thursday night.

Eldest son Josh Duggar, 21, and his wife Anna had a baby girl, Mackynzie Renee Duggar, weighing-in at 8 lbs. and a lengthy 19 1/2 inches, announced Meredith Vieira on "Today."

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Even with having 18 kids to look after, Michelle, star of "18 Kids and Counting," told the "Today" show, "We're really excited about being grandparents. Josh and Anna are going to make great parents."

The first "GrandDuggar" will make her debut on "18 and Counting" on TLC, Tuesday at 9/8c.