Today E3 was seriously rocked by Beatles Rock Band as they unleashed the awesomness that is the fab four upon the world. Turns out that you will be able to perform multiple vocals (harmonies). Harmonix showed off what you can expect in the game.
The Beatles: Rock Band will be released simultaneously for XBox 360, PS3 and the Wii in North America, Europe, Australia, New Zealand and other territories. The trailer above is pretty awesome for Beatles fans.