Join Mel B and Professor Green for some knock-out performances as celebrities face off with mic off.

A weekly talent competition where an array of performers – from singers and dancers, to comedians and novelty acts – vie for a $1 million cash prize.

The film follows the Spice Girls and their entourage (mostly fictional characters) – manager Clifford, his assistant Deborah, filmmaker Piers (who is trying to shoot a documentary on “the real…