Carrie Underwood is singing a very happy tune these days.
And she knows the exact person to thank for it.
The American Idol Season 4 winner spent the weekend in Mexico on vacation, celebrating their six-year anniversary at one point on the trip.
Underwood acknowledged the special occasion with a heartfelt Instagram post directed to her husband.
"Six years ago today, I said ‘I do' to this handsome fella. I meant it then and I mean it now," she wrote as a caption to the above image.
It features the singer and the hockey player holding hands at a very cool and gorgeous dinner spot.
"God put us together and continues to bless our marriage," Underwood added.
For the past week or so, one of the most stable couples in Hollywood has been enjoying some much needed rest and relaxation in Cabo San Lucas.
Fisher is taking a rest from playing hockey for the Nashville Predators, as the NHL season came to an end this spring.
Underwood, meanwhile, is enjoying her own mini hiatus from the Storyteller Tour: Stories in the Round.
She's coming off an amazing performance at the CMT Awards about a month ago.
Check it out here:
Continued Carrie in her post:
"I couldn't imagine this life without you, @mfisher1212.
"I am thankful for these past six years together (and, of course, for our beautiful son, Isaiah) and I look forward to spending the rest of our lives in love."
What has kept Underwood and Fisher going so strong after all this time?
"It helped that we were both established before we were married," she told Cosmopolitan late last year. "Neither one of us could be like, 'I didn't know it would be like this!'"
Added Underwood in a subsequent chat with Extra:
"We just like to relax. Give us a beach somewhere, a lake - we're good. We're easy to pleas.
"I'm always looking up baby-friendly things to do in wherever we are…[Isaiah] loves being outside. I want him to have childhood normalcy…
"We take him down to the pools, and the hotels and let him splash around because a kid would do that."
Of course, while Underwood counts herself as lucky for being with Fisher, it's clear that he's rather fortunate as well.
Consider the following photo as evidence why: