You just never know who is on Facebook Marketplace.

Riley Green found a guitar he wanted on Facebook Marketplace, and instead of sending someone else to pick it up, he went to meet the seller himself.

The guitar was a J-45, which is one of the most famous acoustic guitars ever made. They go for around $2,000 brand new and increase in value over time if treated well.

The man that Riley purchased the guitar from was really surprised that the singer showed up himself.

"Didn’t really wanna sell this girl, but thought I would throw it on marketplace," he wrote. "When I got to the place that I agreed-upon meeting spot, it turned out to be Riley Green himself who was interested in buying it. Let me tell ya folks. This guy didn’t have to meet up with this regular Joe. Heck he could have sent anybody to buy my guitar! Instead he invited me to meet him and look at guitar. When I seen that he was the one buying it, well it made selling it feel a little better! I hope to see him throwing them pic marks on her soon. There will be another J-45 in this guys future.. Thanks Duckman!"