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Bruce Willis and his ex-wife Demi Moore have become grandparents of a baby girl.

Their eldest daughter Rumer Willis welcomed her first child with Derek Richard Thomas on April 18.

"Luetta Ailey Thomas Willis. You are true magic. Born April 18th at home. You are more than we ever dreamed," Rumer wrote on her Instagram account, where she uploaded a photo of the baby.

Of course, proud grandma Demi Moore chimed in too, commenting under the post: "Pure love for this little birdie."

Bruce Willis' second wife, Emma Hemming, who is caring for him as he progresses through frontotemporal dementia, wrote: "We love her so much."

Demi Moore is going to be a grandmother

Emma Hemming is on very good terms with Demi Moore.

Last month, the two celebrated Willis' 68th birthday together - the first since his diagnosis.

Moore then shared a video on Instagram of his daughters serenading him before presenting him with a pie.

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A post shared by Rumer Glenn Willis (@rumerwillis)

Bruce Willis

demi moor

became a grandfather