If you haven't played Rock Band, or Rock Band 2, you're missing out on one of the sublime gaming experiences this side of gunning down rival gangs in San Andreas.
If you've ever strummed an air guitar, beat a rhythm, or hummed in the shower, you need to get this game. But not yet.
In my opinion, band simulators won't reach their peak until you can play any song in your iTunes collection (technology will get there, I'm sure). But the Rock Band franchise is taking a major step forward on September 9, 2009. If you don't believe me, here's what may be the greatest animated commercial that has ever existed. (For a better look, go here.)