Rock Band 4, and all of its accessories and DLC, is playable on the PlayStation 5 through backwards compatibility, and here’s an interesting quirk: you can use the DualSense controller as a microphone. Obviously it’s not the recommended way to play, and you’ll be able to connect any USB microphone to the next-gen console, but the functionality exists.
Harmonix has been busy testing the title on Sony’s next-gen system, and while it obviously can’t guarantee support for every single peripheral in the history of the series, it’s fairly confident your gear will work. “When you break open those crisp new consoles, you should be able to connect your existing, compatible peripherals and play Rock Band 4 right out of the box,” the developer said.
Save data will transfer using either the PlayStation Plus cloud or an external storage drive, while all your DLC will be available for download day one. “You'll notice a pretty sizable performance increase, especially with load times,” it continued. “Getting into gameplay has never been faster, even with large library sizes.”
As for online multiplayer, you’ll be able to play with friends on a PS4, so there’ll be no issue there. For a full list of all the hardware that Harmonix has tested so far, click through here. Don’t worry if you don’t find your gear, though; the company concludes that, generally, “if it worked on Rock Band 4 on the PS4, it should work on next-gen”.