Tim McGraw shared an old photo of his wife country superstar Faith Hill on Monday.
The "I Called Mama" singer and father of three, 53, said the photo of Hill was from their joint "Soul2Soul" world tour in 2017-2018.
"Walking through our basement today and seeing this pic from #Soul2Soul stopped me in my tracks," he captioned his post. "Had to take a picture of my beautiful wife and my daughters’ beautiful mother."
MORE: Watch Tim McGraw and Faith Hill's moving duet in honor of front-line workers"In the background you can see all of their school art work on display....Just a statement on her work ethic and motherhood," he added.
The couple recently celebrated two of their daughters' milestones: Maggie, 21, graduated from Stanford University and Audrey, 18, graduated from high school.
"Boom! Great work ladies!" McGraw wrote in a post featuring both of the girls. "Mom and I are so proud of y’all!!!"
In another post, Hill congratulated Maggie, writing, "Congratulations Maggie and to all of your sweet friends as well!!! We love you!!!!!" In a message for Audrey, she wrote, "Now a high school graduate and a part of the extraordinary class of 2020!!!!!!!!"
The couple also have a daughter Gracie, 23, who graduated from New York University in 2018.
McGraw's upcoming album, "Here on Earth," is out Aug. 21. On Tuesday, he announced a live listening experience for the project.