(CNN)It was meant to be a Mother's Day surprise for one when 26-year-old Rebecca Roy and her family sang "You Are My Sunshine" outside their grandma's senior living facility in Waterford, Michigan.
But before their grandma Cherrill Flynn, 87, even came out, four other women were on their balconies, clapping and even dancing along to the song that they thought was meant for them.
And the moment, captured on video, is just too precious.