During the Celebrity IOU episode, viewers also meet someone else who is very close to John.

John teamed up with the Scott brothers so he could give his friend Johnny, who owns a popular junkyard dubbed "Funky Junk Farms," a log cabin makeover.

The men first connected more than 20 years ago over their shared love of everything vintage. "We were lucky enough that we connected right away like brothers — like brothers from another mother. We love the same things and he's a collector," Johnny said of the actor.

Today, the men continue to see each other often as Johnny is John's current driver.

Celebrity IOU airs at 9 p.m. EST on Mondays on HGTV.