Pop superstars the Spice Girls are considering reuniting to perform at the DIANA, PRINCESS OF WALES memorial concert next year (07). Singer Emma Bunton - who was nicknamed BABY SPICE - is still in touch with Prince William, who is organising the Wembley Stadium extravaganza to mark the tenth anniversary of his mother's death in Paris, France. And Bunton would love to take to the stage with former bandmates Geri Halliwell, MELANIE CHISHOLM, Victoria Beckham and Melanie Brown one last time. She says, "I still get a Christmas card from him and think, 'Wow!' "I would love to do something with the girls again. "It would be great to sing at Princess Diana's concert."