Few ways he could be doing this.
First is botting.
Second is his title. He's got title's that are exactly the same as the official uploads. So, when someone searches for content, the closer they are to the title, the closer it will show up in searches, regardless of tags. Looking at his one direction for example, if you search that name exactly, you get the official video with 66 million views, and then his video is there, 15 videos down. Yes people would have to scroll down, but it is still on the front page. Because it's on the front page, it's more likely to show up in a recommended video for someone who just searched for the official video. 37,000 views is tiny to 66,000,000 views, but the ratio is never exact, so his views could simply be coming from people who search for the official video than scroll down to see what else shows up.
A third thing he could've done is buy his views, using websites like Virool. Yes his initial views he bought are fake, but the idea behind this is that more views ranks the video higher in searches, therefor bringing in potential real views and subscribers.