Grandma and grandpa kill it with their version of this Disney favorite — but keep an eye on their grandson

The greatest love is the kind that lasts for years and years after it’s begun.

This sweet couple has been married for almost 28 years, and they love to sing together wherever they go: in church, at home or anywhere they have the opportunity.

So, while in the car with their grandson one day, they serenaded him with a cover of Frozen’s “Love Is An Open Door.”

From the giggles, emphatic singing and smiles coming from the back seat, we can tell he loves it.