When The Spice Girls announce their reunion tour, there is a intriguing secret they will no doubt be keen to keep from fans.

They won't be belting out their songs just by Girl Power. . . but with the help of Computer Power.

For while the showbusiness world eagerly awaits their return, aides closer to them have been less enthusiastic about their vocal abilities.

The Spice Girls in 1997: Ten years on, they are concerned about their voices

So Ginger, Scary, Sporty, Baby and Posh are going into the studio to pre-record the songs for their tour - in order to mask the failings of their own live voices.

On stage, they will employ a new hi-tech system which will present those digitally-enhanced recordings as their own voices.

It works by taking the singer's live voice on stage and electronically comparing it to the perfect vocal sounds that have already been recorded in the studio. 

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