'Thrift Shop' hitmaker Macklemore has revealed that the naked painting he has of Canadian sensation Justin Bieber will probably just increase in value as the years pass by. 

The rapper explained to TMZ that he purchased the painting from Etsy and is quite fond of it, but won't be selling it anytime soon as its worth might go up:

"It's an investment piece. I think that that painting is going to be worth a lot of money. I search eBay and Etsy for fine pieces of art. It cost me about $20, I'm pretty sure that the minute that the Justin Bieber album went No. 1, I'm pretty sure that painting went to about $30, $33. Do the math, man."

When asked if having the painting in his recording studio helps him to make better music in any way, Macklemore replied, "probably not."

Last summer, Macklemore spoke about his drugs relapse and told Complex that he just slipped up because he was too exhausted to continue with his 12-step program: "I held it together for a while. But, eventually, I stopped going to my 12-step meetings. I was burnt out. I was super-stressed. We weren't sleeping - doing a show every day, zigzagging all over the country."