Erin Foster welcomes her first baby with husband Simon Tikhman

David Foster just had another grandchild!

The composer’s daughter, Erin Foster, gave birth to her first baby with husband Simon Tikhman, sharing the news via Instagram on Sunday.

“Truly the craziest experience of my life, with the best ending,” she captioned black-and-white photos of herself giving birth to daughter Noa at home.

“Noa Mimi Tikhman, having nothing to do with her mother who is always late, arrived two weeks earlier at 4:41 a.m. on May 17,” continued the new mother. “Being completely impartial, I would say that she is already perfect and very advanced, and that she is perhaps the first person I have met to prefer me over Simon.

“I gave her a natural birth in our bed like a beast, but she also would have taken heroin right then and there if anyone had suggested it. Simon would like everyone to know that he is also a warrior ❤️.

The “Barely Famous” co-creator, 41, debuted her baby bump in a November 2023 Instagram post.

“I feel like we need something positive right now so I’d like to offer something,” she captioned the reveal. “I am pregnant!”

His famous friends shared congratulatory comments at the time, with “The Office” alum BJ Novak joking that she would give birth to David’s “favorite grandchild.”

Bumble’s Amy Griffin chimed in to say that Sara Foster and Jordan Foster owed Erin “a lot of babysitting time” because she had been “the best aunt” to their little ones.

Jordan, 38, is mother to Otto and Junie with husband Tomas Woodger, while Sara, 43, shares daughters Valentina and Josephina with partner Tommy Haas.

David also has five additional grandchildren between his two eldest daughters Allison, 54, and Amy, 50.

In addition to his five adult children, David has a baby of his own.

The Grammy winner and his wife, Katharine McPhee, welcomed their son Rennie, now 3, in February 2021.

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Although the couple has chosen to hide the toddler’s face on social media, they often show off his drumming skills.

As for baby No. 2, the “American Idol” alum, 40, told viewers of the “Jennifer Hudson Show” in January 2023 that she would “love” to expand her family.

She and David, 74, have been married since June 2019, tying the knot in London six months before Erin and Tikhman’s nuptials.

The couple tied the knot on New Year’s Eve on the heels of Tikhman’s romantic proposal in Napa.

They have been together since 2018.