The Spice Girls's Melanie Chisholm (better known as Mel C or Sporty Spice) has penned a new memoir, The Sporty One: My Life as a Spice Girl, in which she writes about having been sexually assaulted by a massage therapist in Istanbul, Turkey, on the night before the group's first live performance in the ’90s. "It happened to me on the night before the first ever Spice Girls live performance. And we'd never done a full-length concert before, so, obviously, we'd rehearsed for...