The Brief: Markiplier is an American YouTuber.

DEEP DIVE
Markiplier is an American YouTuberΒ and Twitch streamer with over 21 million YouTube subscribers who specializes in Let’s Play and horror game videos.
Hey guys, I made my first song. I'm really nervous but I'd love some feedback. Thanks gang π pic.twitter.com/vK8WxXSjo3
— Markiplier (@markiplier) April 18, 2018