This is 100% fake. It’s most likely a viral ad for the energy that guy is holding. Although, I can actually see someone on Russia’s Got Talent doing this. Just like I can also see some guy bringing a wild bear on the show and trying to wrestle it. Russians are crazy.
Below is a video of some guy knocking himself out from America’s Got Talent. This one is real and that makes it ten times funnier. I like the part where he gets knocked out, his body stiffens and he topples over like a domino. What about you?