The finalists on the show will be given some of the band's biggest hits to sing on the themed night on Saturday November 20.
The songs will all then be available for fans to download after the programme and it is thought McCartney, 68, and Starr, 70, will benefit as the cover songs get into the charts.
The two remaining members of the legendary British boy band recently agreed for the band's classic tracks to finally be made available for download on iTunes.
Their old tracks soon headed straight into the charts and 13 of their albums quickly ended up in the top 20 albums on iTunes.