the Beatles rock band is an animated promotional video selling music video game.
'Rock Band is a music video game developed by Harmonix Music Systems, published by MTV Games and Electronic Arts. It is the first title in the Rock Band series.
Rock Band allows up to four players to simulate the performance of popular rock music songs by playing with controllers modeled after musical instruments.
The Beatles: Rock Band is a music video game developed by Harmonix Music Systems, published by MTV Games and distributed by Electronic Arts. It is the third major console release in the Rock Band music video game series and, like other games in the series, it allows players to simulate the playing of rock music by using controllers shaped like musical instruments. The game's soundtrack consists of 45 songs by popular British rock group The Beatles and features virtual depictions of the band members performing the songs. Additional songs and albums by The Beatles were made available for the game as downloadable content.
The game was released internationally on 9 September 2009, coinciding with the release of new, remastered compact disc versions of The Beatles albums.'
information courtesy: wikipedia.org