Jenna Bush Hager's daughter Mila singing to newborn Poppy will melt your heart

Jenna Bush Hager is still on maternity leave, but she just couldn't stay away from the TODAY studios on Friday. Which was a treat for us, because we got to see the sweetest video ever of little Mila and baby Poppy!

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Jenna’s back! She says baby Poppy has ‘completed our family’

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Jenna’s back! She says baby Poppy has ‘completed our family’

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Jenna joined Hoda Kotb in TODAY's fourth hour (Kathie Lee Gifford had the day off) and almost immediately there they were, talking about Poppy Louise, who was born in August. And she had some great news: So far, there's no sibling rivalry with 2-year-old Mila.

Mila Hager sings to a sleeping Poppy.

In fact, it's the opposite: "Mila is loving being a big sister," said Jenna. "You never know how it's going to go!"

She explained how they took Mila to the hospital when Poppy was still resting up from being born, and encouraged her to "pick" her out of the nursery. Now, "She's totally crazy about her. Every morning, she goes, 'Mommy, where's Poppy?'"

Leaving these wildly, happy sissies for first work trip. At least I'm traveling with my sissy! #bringoutthepump

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But that's not the cutest thing she does. Apparently Mila "likes to sing her lullabies to Poppy when she's asleep."

And for proof, Jenna brought along a video of Mila doing just that!

"She's so crazy about her," said Jenna. "She's totally gaga."

As for Poppy, she just sits there and takes it all in. "She's just completed our family," said Jenna. "It feels really complete."

Melting over here!

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