Later in his life Campbell was a drinker, but he stopped cold turkey -- until a reported relapse in November 2003. He was famously arrested for drunk driving in Phoenix, Ariz.
"I think the lord allowed him to get arrested and that shook him up and woke him up and he stopped cold turkey again," Woollen said.
"I tell you it's ... I've been sober the last ... thank you lord, that's what I say," Campbell said. "Thank you lord for giving me another chance."
Now there will be one final album, "Ghost on the Canvas," and one last tour to say goodbye to all of us. There to help him are three of his children. Ashley on keyboards, Shannon on guitar and Cal on drums -- all by his side.
"I really like to play. I really like to play guitar," Campbell said.
"Music is a natural memory aid, and we're finding out, we think it really does help his memory and help keep him from declining," Woollen said. "So it's really good for him and all the love he gets from all the fans is really encouraging, so that's why we want to do it as long as we can, because it's healthy for all of us. Music is good medicine."
He wants to keep giving to others as long as he can.
When asked what his favorite song is, Campbell begins to softly sing.
"I am a lineman for the county and I drive the main road... Oh, that's a great song," he said. "I need you more than want you, and I'll want you for all times. The Wichita lineman is still on the line. -- That's a great song, boy."
It sure is.