Happy birthday! Kaylee DeFer turns 40 today

The iconic and legendary actress turns 40 on Wednesday, Sep. 23, 2026.

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Kaylee DeFer is celebrating her 40th birthday today. As a number of online tributes attest, she is one of the most acclaimed actresses of her generation.

Popular actress Kaylee DeFer (Gossip Girl, ...) has always liked to keep a bit of herself hidden from view. At 40th birthday, she remains a woman of many facets.

DeFer, a cultural icon

Born Kaylee Anne DeFer in Tucson on September 23, 1986, her career spans an arc over many different eras and tastes in American history. DeFer's not just a great actress, she's an inspiration, an icon and a successful business woman. At this point in her career, there seems to be little Kaylee hasn't done.

And we've got a feeling the next 12 months are going to be even bigger and better for Kaylee DeFer as she promises more to come. After all, she's only 40.

Happy Birthday, Kaylee, you're the best!

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