Jenna Bush Hager is now the mother of a teenage daughter, a feat she recently celebrated with her "Today" show co-host and over 1.5 million Instagram followers.

Hager, thegranddaughter of the 41st U.S. president, George H. W. Bush, and former first lady Barbara Bush, shared a photo on her Instagram stories on Monday, April 13, of her hugging her now-13-year-old daughter, Mila, with the caption “Happiest birthday to my dream girl.”

The 44-year-old author and journalist reflected on how quickly her daughter has grown up during Monday's episode of "Today with Jenna & Sheinelle".

“That little person turns 13 years old today, which I cannot believe,” Jenna said on "Today".

Co-host Sheinelle Jones joined in on the birthday celebration, telling Hager, “You officially have a teenager."