The Spice Girls reunion has been flagged up for nearly as long as the Blair/Brown handover. It's going to be announced later today, apparently. Not a moment too soon for the members of the group, who have to face the hard fact that they must either do it now or not at all. Cream can get back together forty years after they formed and nobody cares that they're a bunch of craggy old scrotes. Nobody needs to fancy them.
But the same rules don't apply to women in show business. Just as the male newsreader can get older while his female colleague is always traded in for a younger model and actresses disappear at the age of 38 and aren't allowed back until they can play eccentric grandmothers, the market for classic pop'n'rock will continue to be dominated by older white males.