Assuming you need no briefing on The Beatles or Rock Band; both names are a pretty big deal (one greatly more than the other, of course). What we have here is the popular rhythm game's take on the legendary and influential band from Liverpool, England. The Beatles Rock Band is essentially two packages in one. On one hand, it's a Beatles game, and as such, pure fan service. On the other, it's the next major release in the Rock Band series. While the game excels at the former, a lack of content makes it fall just a bit short at the latter.