Anyone know what video this is from?

Mary Kish tweeted this tweet recently and I can't for the life of my figure out which video this was. All I know is that I need that watch what the hell is going on! Any help with this would be greatly appreciated

https://www.giantbomb.com/videos/big-live-live-show-live-2015-part-04/2300-10160/

@boonsong: You sir are the best! May the sun shine brightly upon you