And it was all online!
So, we've all heard of Marshmello, the incredibly talented music producer who seems to be on everyone's hot singles...
And you've also probably heard of the online game Fortnite, which has taken over many, many children's lives, much to the bewilderment of parents.
Well, on Feb 2 the two combmined in huge online (virtual) concert within the game, which amassed over 10 million online viewers worldwide.
Players who joined in the virtual mosh-pit were offered Marshmello-themed skins and emotes, as well as a special "Marshy Smasher" pickaxe.
Is this what the future will look like?
We made history today! The first ever live virtual concert inside of @fortnite with millions of people in attendance. So insane, thank you epic games and everyone who made this possible! pic.twitter.com/xdaNGnyMr9— marshmello (@marshmellomusic) February 2, 2019