Randy, Matt Goss, Preston, Shystie (S15E01)

S15E01 Randy, Matt Goss, Preston, Shystie S15E02 Eos, Dave Bartram, Har Mar Superstar, Leigh Marklew S15E03 Louis Walsh, Ben Ofoedu, Jason Donovan, Lara McAllen S15E04 Lisa Scott-Lee, Toyah Willcox, Larry Hibbitt, Nick Atkinson S15E05 Joe Brown, Buster Bloodvessel, Shola Ama, Nicole Russo S15E06 Katie Melua, Jane McDonald, Aaron Gilbert, Michelle Gayle