This picture is from the "knuckles sings" video from the YouTuber Gregzilla, which is where the meme originated from. I don't want to support the Ugandan Knuckles meme because from what I can tell it's racist -- the accent is bad enough, but I've also read that the clicking noises are actually making fun of click-based languages from Africa. I'm white and not an expert, but it seems off to me and I would much rather err on the side of being careful than let my picture sit and possibly hurt people.
However, I think the skin itself is fucking hilarious so if you, like me, want an offense-free way to enjoy this meme go watch the original video that's linked first. Stay safe and be good people everyone!
(p.s. If I find out that the image itself is too connected to racism then I'll take it down. It's just not worth it to hurt people guys.)