Carrie Underwood still calls her husband “my boyfriend” after 10 years of marriage.

Mike Fisher and Carrie Underwood

Mike Fisher and Carrie Underwood

The 37-year-old country singer celebrated National Boyfriend Day with her husband, Mike Fisher, with a sweet post on Instagram where she revealed she still refers to the 40-year-old former hockey player as her boyfriend.

Sharing a snap of the happy couple, Carrie wrote: "Been married for 10 years, but he’s still my boyfriend... #NationalBoyfriendDay”

Fans were quick to comment on the ‘Cry Pretty’ hitmaker’s post, where many shared that they also still refer to their significant others by "girlfriend" and "boyfriend" titles.

One wrote: "My husband still tells people I’m his girlfriend. We’ve been married 32 years"

While another commented: "I've been married for 39 years and I say the same thing! Love is keeping it real!"

It comes shortly after the couple celebrated their 10th wedding anniversary in July.

Carrie shared a series of throwback snaps of the pair when they were younger and reminisced on how they first met backstage at one of her gigs.

She wrote: "Hey you two crazy kids. Believe it or not, some day you both will become (slightly) less awkward, you’ll grow up to have pretty cool jobs, you’ll meet backstage at some girl’s concert, fall in love, get married, have two amazing boys, and live happily ever after!"

The musician — who has sons Jacob Bryan, 20 months, and Isaiah Michael, 5, with Fisher — added that their marriage has been "pretty incredible."

She continued: "These past 10 years have been pretty incredible with you, @mfisher1212 ! Here’s to many many more...without the bowl cuts!" she wrote. "I love you and I thank the good Lord that He brought those two kids together! HAPPY ANNIVERSARY!!!!!!!!!!"

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