Tim McGraw and Faith Hill just celebrated a big relationship milestone -- 23 years of marriage.
The famous country couple, who share three daughters together, Gracie, 22, Audrey Caroline, 17, and Maggie Elizabeth, 21, posted about their appreciation for one another on their wedding anniversary on Sunday.
"Happy anniversary baby!! 23 years and I can't wait for the next 50!!! I love u," McGraw posted alongside a throwback with Hill.
Hill also shared a sweet throwback with her husband and a sentimental note to mark the special day.
"To my one and only, Happy Anniversary, my love. I love you," she captioned her photo.
Hill said there is "no secret" to the success of their marriage in a 2017 interview with the Associated Press.
"Either you like one another or you don't," she shared. "You want to stay married or you don't. You work at it, or you don't. Simple as that. It is not always easy and there are moments that are rocky."
"But you don't walk away," McGraw added.
"I would rather live a life in rocky road ice cream than vanilla any day of the week," Hill continued. "Honestly, vanilla gets boring after a couple of days."
In a post for Hill's 52nd birthday last month, McGraw described Hill as, "my best friend, my lover, my tether in the storms..."
He often posts snaps of her to show "how fortunate and grateful" he is.