Kenzie Greene was chatting with her mom and aunts about what to do for her grandpa's birthday when they came up with the idea ...

"Everyone arrived at my parents' house early to set up, and when we got word Papaw was there, the cousins all revealed ...

Kenzie Greene, a 21-year-old senior in college, was chatting with her mom and aunts about what to get her grandfather for his 80th birthday ... hours before the surprise, the family gathered ...

One group of cousins gave their grandfather an 80th birthday gift to remember ... A few hours before the surprise, the family gathered at their grandparents' house to set up.