Rock Band, however, cranks the fantasy up a notch by adding drums and a microphone to the mix (it also supports a second guitar for that special bassist in your life). The guitarists strum, the drummer drums, the singer warbles—think karaoke, but it detects which key you’re singing in—and it all adds up to one fantastic experience. The overdrive power-up can help your band achieve arena-rattling heights as you and your mates go on a virtual tour—complete with screaming fans—from Boston to Reykjavik.