YouTube comments for this are generally useless, but one person claims it's a charity game with a team of pro all-stars versus a team of comedians. They don't name any names though and the rest of the comments are variants of LOL WUT and CHING CHONG DONG and RACIST ASSHOLE stuff.
This was a charity game put on by Korean celebrities. They were acting out a kid's game called Chicken Fight where you try to knock your opponent down while holding a foot.