Mel C chats with ET's Nischelle Turner about the possibility of the Spice Girls reuniting and going on tour in the U.S. again. The singer opens up about the 25th anniversary of the group’s movie, ‘Spice World.’ Mel also shares her thoughts on performing with Victoria Beckham, Mel B, Geri Halliwell and Emma Bunton again! Mel’s memoir, ‘The Sporty One: My Life as a Spice Girl,’ is out now.