Last week, MTV announced a new category for this year’s Video Music Awards: best metaverse performance. If that doesn’t say mainstream, then consider the six nominees: superstars Ariana Grande, Blackpink, BTS, Charli XCX, Twenty One Pilots, and Justin Bieber. What are these concerts like? Whether they take place in VR worlds or on gaming platforms, they all involve digital musicians performing for a digital audience. But each one is unique: In Grande’s The Rift Tour in “Fortnite,” players surf on cotton candy-colored waves and fight a giant monster. Twenty One Pilots and Charli XCX...…Last week, MTV announced a new category for this year’s Video Music Awards: best metaverse performance. If that doesn’t say mainstream, then consider the six nominees: superstars Ariana Grande, Blackpink, BTS, Charli XCX, Twenty One Pilots, and Justin Bieber. What are these concerts like? Whether they take place in VR worlds or on gaming platforms, they all involve digital musicians performing for a digital audience. But each one is unique: In Grande’s The Rift Tour in “Fortnite,” players surf on cotton candy-colored waves and fight a giant monster. Twenty One Pilots and Charli XCX...WW…