Fortnite’s Marshmello concert was a bizarre and glimpse of the future

Besides the title gore, is this writing basically contentless? No idea how many people 'attended', Sixty? Thousands? No idea how it was monitized (Something about hats and emotes), or even what players did to 'participate' other than playing the game to promoted music? Did they make 100 or a million? All I get are vauge descriptions of flashing lights and a fortnite ad.