This is one of those videos where we all go "FAKE!" right off the bat, but I dunno. I'm guessing that it's real, and that he's just done a lot of drugs in his life. See, kids? Drugs are bad. (But those gold underwear are good!)
If you watch the original Mark Ronson/Bruno Mars video for Uptown Funk, you'll see that our gold undies wearing friend totally nails it.