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This story originally appeared at LittleThings.

Korey and Sharon met at Pensacola Christian College and married in 2010. It wasn’t long before they welcomed their son into the world.

In August 2015, the happy couple learned that they were pregnant again. This time, they decided not just to keep their baby’s gender a secret — they also left out one other vital piece of information.

Since most of their family members live in other states, Korey and Sharon kept “the secret” going by deactivating their Facebook accounts and making some of their loved ones swear to secrecy for the time being.

After Sharon gave birth, it was time for the big reveal. Sharon’s mom was the first to walk into the hospital room. She brought one pink and one blue balloon, since she didn’t know the gender of her new grandbaby and wanted to be safe — but when she looked in her daughter’s arms, she got the surprise of a lifetime.

It’s impossible not to have fun watching reaction after reaction in the massively viral video below.

I’m so grateful Korey and Sharon caught all these priceless reactions on film!

See Grandma’s Perfect Reaction Below!