You know how regular, non-Beatles-featuring versions of Rock Band and Guitar Hero make you play through the entire game to unlock all of the included songs? Thankfully, The Beatles: Rock Band won't make you do that — all 45 songs in the game will be playable immediately. According to just-released details, the incentive to actually play through the thing will be the ability to listen to audio of Beatles rarities, including their long-out-of-print 1963 fan-club Christmas single. (Or, if you really suck at video games, we suppose you could just download the MP3 here.) [Idolator]