WATCH: Irish MMA fighter shares lovely video of him and his grandad singing 'Imagine' together 11 months ago

WATCH: Irish MMA fighter shares lovely video of him and his grandad singing 'Imagine' together

Don't blame us if you end up crying your eyes out here.

Professional MMA fighter Ian Garry, who is signed to Cage Warriors, has shared a video of him showing off his new tattoos to his grandfather, but with a serious twist.

Speaking to the camera, 21-year-old Garry reveals that one of the tattoos is a tribute to his grandad.

"He's got dementia so he can't really remember a lot of things lately, and obviously it's getting worse. But for some reason whenever you say the word imagine," he immediately goes to John Lennon and starts singing."

"I'm hoping and praying now if I say this, he'll sing it."

Sure enough, as soon as Garry shows his grandad the new ink, the older man starts to sing, prompting Ian to sit down beside his grandad for a grandad-grandson duet. These lads don't get a single note wrong, either.

A truly lovely moment that will almost certainly fill you up with love for the older family in your life. Watch below:

The clip has deservedly gone viral, picking up over 10,000 likes on Twitter in half a day.