Short clips and trailers of the much anticipated Beatles version of 'Rock Band' have surfaced in the past months on the web. Scheduled for release on September 9, and complete with controllers shaped like John Lennon's trademark Rickenbacker 325 and Paul McCartney's Hofner bass, 'The Beatles: Rock Band' has been kept on lockdown thanks to the game's manufacturer Viacom, who removed most leaked clips from YouTube.

Now, as Clash Music reports, the first full-length clip of the virtual Beatles performing 'Birthday,' which originally appeared on the band's eponymous 1968 double album -- aka 'The White Album' -- is out, having been leaked to customers who pre-ordered the game and posted on Facebook. The full-length clip is rated T for Teen due to mild tobacco references and mild lyrics, but at least they keep George Harrison in his signature red and black striped pants.