‘Dancing With the Stars’ Pro Louis van Amstel Marries Joshua Lancaster

Louis van Amstel has officially said "I do!"

The Dancing With the Stars pro wed his longtime boyfriend, health coach Joshua Lancaster, on Sunday in Sundance, Utah, ET has confirmed.

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"Our wedding was beyond magical," van Amstel told ET on Wednesday. "We couldn't have been more blessed having all our friends help us."

According to the 44-year-old dancer's rep, 137 guests attended the wedding, including van Amstel's former DWTS partners, Kelly Osbourne (season nine) and Sabrina Bryan (season 15), as well as fellow pros Chelsie Hightower and Ashly DelGrosso. His best friend, Dawson's Creek star Mary-Margaret Humes, served as best man.

"Our winter wonderland wedding in the mountains at Robert Redford's Sundance Resort was the most beautiful and romantic!" added van Amstel.

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Following the reception, the newlywed took to Instagram to share highlights from his and Lancaster's special day.

"Last night surrounded by our closest friends and family, my partner Josh and I got married," van Amstel wrote alongside a snap captured from their first dance. "It turned out perfectly and I want to thank everyone who attended and all of you for your kind notes, comments, Tweets and posts. My heart is full!"

A week prior, Lancaster, 27, shared a selfie of the two holding their marriage license. "We have officially been licensed to wed!" he wrote. "Look out we're soon to be a #family #fiancelife."

We have officially been licensed to wed! Look out #🌎 we're soon to be a #family #👬 #💍 #fiancelife

A photo posted by Joshua van Amstel (@joshua_vanamstel) on Jan 3, 2017 at 2:09pm PST

See more pics and videos below.

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👨‍👨‍👧✨❤️

A photo posted by Louis van Amstel (@louisvanamstel) on Jan 11, 2017 at 10:48am PST

What a beautiful wedding for @louisvanamstel and josh tonight! Congrats and love you guys!

A photo posted by Chelsie Hightower (@chelshightower) on Jan 8, 2017 at 9:39pm PST

#vanlancasterwedding January 8, 2017

A photo posted by Stephanie De Ortiz (@traveldancesteph) on Jan 10, 2017 at 11:30am PST

@jsh_lncstr @kmac0316

A video posted by Michael (@michaeldmcneilly) on Jan 9, 2017 at 1:39pm PST

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In more exciting DWTS news, pro dancers Peta Murgatroyd and Maksim Chmerkovskiy recently welcomed their first child together, a baby boy named Shai.

To hear more on their little bundle of joy's arrival, watch the video below.

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