Mark Ronson reveals he secretly wed Meryl Streep's daughter, Grace Gummer: 'My truest love'

Mark Ronson is sharing his love for his wife, Grace Gummer.

In honor of his 46th birthday Saturday, the "Uptown Funk" producer on Instagram confirmed that he married Gummer, the daughter of Oscar-winning actress Meryl Streep, while thanking her for making 2021 "the greatest year of my life."

"To my truest love...out of nowhere, you made 45 hands down the greatest year of my life. And i'm sure it took me 45 years to become the man worthy of your love," Ronson wrote Saturday, alongside a black-and-white wedding photo of the two.

He continued: "I hope I spend every one of these birthdays by your side til my last day. And beyond. Forever and ever yours ❤️❤️❤️❤️❤️❤️ (and yes, we got married)"

USA TODAY reached out to reps for Ronson and Gummer for further comment.

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Engagement rumors first circulated in May when paparazzi photos obtained by Page Six circulated of Gummer wearing a large ring on her left hand. Ronson later hinted at his engagement in June during his podcast, "The FADER Uncovered."

“I got engaged last weekend,” Ronson shared during the conversation with Kevin Parker of Tame Impala, without revealing the name of his fiancée.

He also quipped at the time that his first kiss with his then-fiancée was “corny."

“There’s a plaque for that somewhere. There’s a first kiss, very corny Hallmark first kiss plaque,” he added. “But no, it was forever, it will be etched. It’s still my record.”

Ronson was previously engaged to actress Rashida Jones from 2003 to 2004.

The Oscar- and Grammy-winning producer, who is best known for the hit single  "Uptown Funk," made his reputation producing Amy Winehouse's Grammy-winning 2006 album Back to Black. Since releasing his last album, 2010's Record Collection, Ronson has produced Mars, Paul McCartney, Rufus Wainwright and more.

Contributing: Brian Mansfield