Nick Lachey celebrated his wedding anniversary on Saturday by posting a message and throwback photo of him with his wife, television personality Vanessa Minnillo.

"Six years ago today, I took this beautiful woman as my wife and the life we've built together is more incredible than anything I could have ever imagined!! Through all of the laughter, tears, triumphs, and challenges, you are my unconditional rock."

"I love you and our family more than you will ever know. Thanks for your patience, support, and love. Thanks for being you. Happy Anniversary!! #soulmate," Lachey captioned a black and white wedding photo of him with his wife embracing, smiling and standing on a beach.

The couple now has three children.