Pop star Melanie C joined the studio via phone ahead of the Battle episodes on The Voice. Having previously worked only on the kids’ version of the show, Melanie admitted it's been a big learning curve stepping into the adult series. She spoke about the different kinds of coaching needed - some contestants required a confidence boost, while others benefit more from technical guidance. Inspired by the bizarre news of a Bryan Adams concert being cancelled due to a fatberg, the guys asked Melanie if she’d ever had a show called off for an unusual reason. She laughed and shared her own behind-the-scenes stories from the road.