Cover of the Beatles' Abbey Road album. (Handout)

The surviving Beatles stars are set for a bumper $1.6 billion pay day, following a slew of re-released records and a new Fab Four-inspired video game.

Sir Paul McCartney and Ringo Starr teamed up with John Lennon's widow, Yoko Ono, to approve the use of the band's music in new game Beatles: Rock Band, which goes on sale later this year.

Beatles fans will also be able to get their hands on remastered versions of 13 of the Fab Four's albums as a $272 boxset, as well as digital tracks which will soon be available to download through iTunes.

The new projects are set to make 2009 the group's highest-earning year ever, with experts predicting a massive $1.6 billion profit.

Brand expert Jonathan Gabay tells British newspaper the Daily Record, "In one masterstroke, they address falling sales of CDs as well as grab a new generation of Beatlemaniacs."