Sir Paul McCartney, Ringo Starr, Yoko Ono and Olivia Harrison appeared on stage at the launch of this awesome new game from Microsoft.

Due out in September 2009, it was to huge applauses that the women representing their partners entered stage.

Shortly after, Ringo and Paul came along to an erupting applause from the crowd that had waited to see them. This well thought out game allows you to rock out with the Beatles, and even has replica hardware that was used by the members of the band.

For the first time ever, players can download music as well, and we are sure you will love rocking out to some fab Beatles tunes.