Uptown nuptials.

Mark Ronson has marred Grace Gummer, the musician revealed on Instagram Saturday.

"To my truest love … out of nowhere, you made 45 hands down the greatest year of my life," he wrote in the caption of a pic of the pair in their wedding duds.

MARK RONSON APOLOGIZES FOR 'SAPIOSEXUAL' COMMENT

"And I’m sure it took me 45 years to become the man worthy of your love. 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)."

Grace Gummer

Grace Gummer, an actress, is the daughter of Oscar winner Meryl Streep and artist Don Gummer. (Photo by Matt Winkelmeyer/Getty Images)

Ronson did not specify exactly when the couple had gotten hitched; Page Six reported on August 5 that they were set to wed on that weekend, in a ceremony whittled down from a larger affair by the COVID-19 pandemic.

Presumably, the pair’s famous parents were in attendance, at least: Ronson, 46, is the stepson of Foreigner guitarist Mick Jones, while Gummer, 35, is Meryl Streep’s daughter with artist Don Gummer.

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Page Six reported in May that Ronson and Gummer were engaged after dating for a year when pics of Grace with a giant diamond ring were publicized. Mike Fried, the CEO of The Diamond Pro, told Page Six Style that the stone was likely 3-5 carats and could be valued at north of $100K.

Ronson confirmed the engagement in June on his podcast.

Mark Ronson

Mark Ronson, a musician/producer, is the stepson of Foreigner guitarist Mick Jones. (Photo by David M. Benett/Dave Benett/Getty Images for V&A)

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It’s the second trip down the aisle for both parties: Ronson was married to French actress Joséphine de La Baume from 2011 to 2018, and Gummer was married to musician Tay Strathairn for just shy of a month and a half in 2019. Ronson was also previously engaged to actress Rashida Jones from 2003 to 2004.