Beatles Rock Band Trailer

Since I've spent so much time talking about and anticipating this game, I feel inclined to share the game's first trailer.

So far there are 10 confirmed (by this trailer) tracks, but the game will include 45 total with an additional option to purchase the entirety of Abbey Road. Those well versed in Rock Band will notice something new going on here; The first vocal harmonizing in the game series so far is prominent. Does that mean I need to buy more microphones for my band? Sure does, if Paul and Ringo have anything to say about.