"Their voices have changed a little bit but there music is still great and it still touches my heart every time I hear them sing," Wilson said.
Wilson is a fan of the Ozark Mountain Daredevils, a band performing at the Dawg Daze of Summer festival in Savannah this weekend.
It's not the first time Wilson has seen the band play.
"Indian Crossing Casino in Waupaka, Wisconsin, they played in my hometown one night twenty years ago," he said.
But this concert is a little different than the last one he attended.
Wilson was recently diagnosed with terminal cancer.
"Eighteen months after I was diagnosed, it moved to my liver and now its in my bones, it's in my lymph nodes," he said.
So to make the most of the short time he has left, Wilson, his wife, and their friends traveled to Savannah to see Ozark play one more time.
"We've decided to live life like we're living, not like he's dying," said Sarah Wilson, Greg's wife.
"There was no chance I thought he would make it until Spring and the fact that he is here and he really is doing as well as he is, we are celebrating life," said Rosemary Angsten, a family friend. "And Greg and Sarah live life. They truly just live life every day and it's awesome."
Wilson says he listens to Ozark often to keep his spirits high.
"Especially with the battles I'm facing right now, they hit home and kind of carry me through the day," he said.
And on this day, Wilson and those closest to him, got to see them play live.
"It's special, really special," he said.