Surviving Beatles Sir Paul McCartney and Ringo Starr appeared together onstage at Microsoft's Electronic Entertainment Expo (E3) yesterday at the University of Southern California to promote the all-new Harmonix game, 'The Beatles: Rock Band'.

Paul and Ringo took to the stage to make a brief introduction for a preview of the game. McCartney played air guitar as he walked on.

"The game is good, the graphics are good, and we look great," joked Starr.

"I never thought we'd end up as androids," McCartney added.

The game will include 45 songs, which gamers will be able to play along with in a number of Beatles-related settings including Liverpool’s Cavern Club and Shea Stadium in New York.

The game will include the following songs:

'I Saw Her Standing There'
'I Want To Hold Your Hand'
'I Feel Fine'
'Day Tripper'
'I Am The Walrus'
'Back In The U.S.S.R.'
'Octopus' Garden'
'Here Comes The Sun'
'Get Back'

All feature fun animations behind the new innovative three-part harmony vocal bars that scroll across the screen as you play.

It was also revealed that "All You Need Is Love" will be coming to the game as Xbox exclusive downloadable content, where all proceeds from the song will go to the Doctors Without Borders Charity.

Harmonix revealed that they will be releasing full albums from The Beatles as downloadable content, with the entire album of Abbey Road being the first available for purchase after the game launches.

The Beatles: Rock Band will be released on September 9, 2009 for Xbox 360, PS3, and Wii.