Melanie C left fans in hysterics on Tuesday night as she made her debut as a guest judge on RuPaul's Drag Race UK Vs The World.The 48 year old joined RuPaul, Michelle Visage and Graham Norton on the judging panel as the best drag queens across the globe united to fight for the crown. And Sporty Spice couldn't help but throw some shade at her fellow bandmates – namely Victoria Beckham and Geri Horner – as she critiqued the queens.