Things You'll Need
Instructions
Plug a multi-tap device into the PS2 if you intend on using multiple Rock Band instruments. The multi-tap device is inserted in one of the PlayStation 2's controller ports. If you are not using multiple instruments, plug the microphone into the controller port instead.
Plug a PlayStation 2 controller to the other controller port on the system. Plug all of the instruments you wish to use into the multi-tap device, if you are using one -- including the microphone.
Start the "Rock Band" game, and select the song you want to play. When the song begins, you may use the microphone.