During an appearance on The Tonight Show Starring Jimmy Fallon on Monday the former Spice Girls singer discussed the stamps, which are being issued by Royal Mail in the U.K. to mark the girl group's milestone anniversary. "It is 30 years and I just realise this because we just released our stamps from the Royal Mail. Usually it's the queen's face that's on the stamp. It went from the queen to the king and then the Spice Girls have their own stamps.
