Luke Bryan opened up about his marriage with wife, Caroline Boyer. He even wrote a song for her.

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The new track is featured on Bryan's album Kill The Lights, which came out last week. The track is called "To the Moon and Back."

"This was my attempt at, through song, telling her how much she means to me," he admitted. "I never kinda landed on a wedding song, and this thing may be that."

Although this summer has been full of divorces and splits, including country stars Blake Shelton and Miranda Lambert, Bryan's marriage remains strong.

"We're really, really blessed," the country singer said of his wife whom he married almost 9 years ago.

The two met in college, Georgia Southern University, and have been together ever since. They tied the knot in 2006.

When Entertainment Tonight asked Bryan how his friend Shelton is holding up with his divorce, Bryan explained, "A divorce out of the public eye is a tremendous thing to have to deal with."

"When they're in the public eye, you just hope they're doing good and you hope they're happy at the end of the day."

He said that that him and his wife Caroline would sometimes grab a hotel room or have a "fun date night" to keep in tact.

The two are parents of sons Bo and Tate, as well as Bryan's late sister's children who are now a part of his family.