Posted 2 hours agoSubscribe to BuzzFeed Daily NewsletterCaret DownMachine Gun Kelly Explained Why He Got That Massive Blackout Tattoo That Basically Covered His Entire Body"You know the skin is the largest organ that we have."by Mychal ThompsonBuzzFeed StaffFacebookPinterestLink Machine Gun Kelly is breaking down the purpose of his drastic blackout tattoo. John Nacion / Variety via Getty Images Last year, MGK, at the peak of his rock era, had a jolting metamorphosis when he revealed his full-body tattoo, even showing everyone the behind-the-scenes of the grueling process.