So sweet! Dancing with the Stars pros Peta Murgatroyd and Maksim Chermkovskiy just celebrated their first wedding anniversary on Sunday, July 8, and they both took to Instagram to celebrate in the sweetest ways. Maks, 38, shared a video from when he and Peta married at City Hall before their big ceremony.

"Before we did it in front of 300," he captioned the clip of the two. "This was one of the most exciting days of my life! Everything felt very festive, I couldn’t take my eyes off my future wife the whole ride to the City Hall and it was is if New York City herself was marrying us."

He added, "I can’t believe it’s been a year. I still can’t believe you chose me. I can’t believe I get to live this dream with you by my side for the rest of my life and I promise to earn every second of your love. I love you @petamurgatroyd ❤️ Happy anniversary baby."

Peta followed up with a photo from that day and a sweet message to Maks. "Today I married the man I fell in love with so many years ago. I knew he was the one. There was something so electric between us that people will still tell me about to this day. I love you @maksimc , this has been an incredible, outrageous year for us! I pray we are this happy for the rest of our lives. You’re everything I knew you were," she captioned the sweet photo of the two at City Hall.

The longtime couple previously tied the knot in a gorgeous ceremony at the Oheka Castle in Long Island, NY on July 8, 2017 — and since her wedding took place in a castle, Peta's wedding dress was fit for a princess!

The blonde beauty wore at least two different dresses on her special day, and her former DWTS partner Nyle DiMarco — who was a guest at the nuptials — couldn't help but gush over how gorgeous she looked.

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Peta walked down the aisle to Tchaikovksy’s Nutcracker Suite wearing an ivory, off-the-shoulder ball gown designed by Karen Sabag Couture. She completed her wedding look with a long veil and was accompanied by her father.

Also included in the wedding party was Maks and Peta's now-18-month-old son, Shai, who was carried down the aisle by Peta's mother, and Maks' brother and fellow DWTS co-star Val Chmerkovskiy was the best man. For his wedding attire, Maks paired a white tuxedo jacket with matching shirt and tie with black pants and the rest of the groomsmen looked dapper in white tuxedos with black trimming.

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DWTS pro Sharna Burgess and alum Rumer Willis were bridesmaids, and former troupe dancer Nicole Volynets Gamer served as Peta's maid of honor.

Once the couple exchanged their self-written vows and said "I do" in a non-denominational ceremony, guests were treated to a five-course meal and lots and lots of dancing!

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After Peta and Maks shared their first dance together, she changed out of her ball gown into a feathery cocktail dress so she could hit the dance floor with her 300 guests. Later on in the night, she slipped into a white, form-fitting dress and snapped a photo with her hubby and her brother-in-law.

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“It was everything we ever dreamt of,” Maks told Us Weekly shortly after the night came to an end. Peta added, “And the party of the year!” Here's to many more years of happiness for the couple!