Imagine Madonna battling it out against Cher, or Frank Sinatra going head to head with Elton John. Each week, our tribute artists will be put through their paces as they try to capture the performing essence of an established superstar. They�ll be given performance tips by a host of top professionals, from vocal coaches to choreographers, make-up artists to costume makers.

And it all leads up to weekly live shows on BBC ONE, in front of a studio audience of friends and their icons� Superfans, to win those all-important viewers� votes. Who can combine their looks, voice and acting talents into a complete package that suspends the audience�s disbelief and perform as a star? Who will the nation choose as their greatest superstar double?