Mike Fisher (and Sons Isaiah and Jacob!) Wish Carrie Underwood a Happy Birthday from 'Us Boys'
"Us boys are so grateful for you!" Mike Fisher wrote to wife Carrie Underwood
Carrie Underwood is celebrating turning 36 with some love from husband Mike Fisher.
The retired NHL player marked his wife’s big day Sunday with a sweet message on Instagram also attributed to the couple’s young sons, Isaiah Michael, 4, and Jacob Bryan, 7 weeks.
“Happy birthday babe! You’re an incredible wife and mom!” Fisher, 38, captioned a selfie of the couple. “Us boys are so grateful for you! Love you lots.”
The note was accompanied by a sweet selfie of the happy couple, who tied the knot in 2010.
Underwood seemed to enjoy the day’s festivities, as she wrote on Twitter she spend it just as she wanted – in her comfiest clothes with her family.
“Thanks, everyone, for the birthday wishes,” she wrote. “I’m spending my day perfectly…on the couch, in my comfies, snuggled up with my boys! ❤️🎂!”
The low-key day at home comes months before the American Idol alum is set to kick off her Cry Pretty tour in May.
RELATED VIDEO: Inside Carrie Underwood’s New Life with a Family of 4: ‘They’re Total Homebodies’
“They’re total homebodies,” a source previously told PEOPLE. “They rarely leave their home at night and love the outdoors and often go for walks… Carries lives a very quiet life. They take Isaiah fishing, to the zoo and to farms so he can learn about animals. They very much live a farm life and seem to love it.”
Isaiah recently celebrated a birthday too, turning 4 on Feb. 27.
Fisher shared an adorable video to Instagram of Underwood singing “Happy Birthday” to their son after inhaling helium from a balloon.
Underwood also gave a sneak peek at Isaiah’s birthday bash by showing off his Muppets-themed Kermit the Frog cake.
“Ummm … @iveychildersandthis @iveycakestorethis have outdone themselves once again!” she wrote on Instagram.
The “Church Bells” singer and Fisher welcomed their second child on Jan. 21.
“Jacob Bryan Fisher entered the world in the wee hours of the morning on Monday … his mom, dad and big brother couldn’t be happier for God to trust them with taking care of this little miracle!” Underwood wrote alongside a photo gallery of herself, Fisher and Isaiah and the newborn.
“Our hearts are full, our eyes are tired and our lives are forever changed. Life is good … ” she added.