Grandparents' incredibly touching birthday serenade

Bollywood actress, Alia Bhatt, recently turned 23 and her grandparents wished her happy birthday in the sweetest way possible.

Bhatt’s grandpa soulfully played his violin to the tune of “Happy Birthday” while grandma accompanied him on a harmonica.

“Couldn’t hold back my tears,” Bhatt commented. Watch a snippet of the performance above.