According to Entertainment Tonight, the two marked their decade-long marriage last weekend in Lake Como, Italy, where they exchanged "I do's" in September 2013.
"They held it at the new Passalacqua Hotel in Lake Como, Italy. It was a big event with all their family and closest friends," a source said.
"Rather than a musical performer, they wanted to fly in a bunch of comedians to perform for everyone. Everyone had the best time and was so excited to be there. Chrissy, John, and their kids are doing so well. They are all super happy and enjoying this time," they added.
PEOPLE Magazine also reported that their love-filled affair started with a brunch, which was followed by their wedding anniversary and renewal of vows in the evening.
"It was very romantic. They arrived by boat. It was breathtaking to see them still so happy together," an insider told the media outlet, calling the event "very elegant" and "very classic" as the venue had "flowers everywhere."
The news comes days after Chrissy shared a screenshot from a conversation with her friend about them not intending to call it a "vow renewal" because she found it "corny."
"But that's what it's sounding like, isn't it?" Chrissy asked her pal. To which, the latter said: "It's 100% vow renewal."
Chrissy and John fell in love after meeting on the set of his music video for Stereo in 2006.
They tied the knot seven years later, and have since welcomed four children: 7-year-old Luna Simone, 5-year-old Miles Theodore, 9-month-old Esti Maxine, and 2-month-old Wren Alexander.