Michael Bolton, Carol Vorderman, Diana Vickers, Shane Filan and Seann Walsh (S27E08)

S27E01 John Hannah, Basement Jaxx, AlunaGeorge, James Acaster S27E02 Russell Howard, Conor Maynard, Lethal Bizzle, Isy Suttie S27E03 Peter Andre, Jason Gardiner, Ana Matronic, Charles Cave and Tony Law S27E04 Sara Cox, Iggy Azalea, Matt Richardson, Jake Humphrey and Eliza Doolittle S27E05 Kristin Schaal, Rylan Clark, Daniel O'Docherty, James Arthur, Alice Levine S27E06 Eamonn Holmes, Sarah Millican, Jaymi Hensley, Shaun Ryder, Greg McHugh S27E07 Rizzle Kicks, Huey Morgan, Lissie, Laura Whitmore and Paul Foot S27E08 Michael Bolton, Carol Vorderman, Diana Vickers, Shane Filan and Seann Walsh S27E09 Jack Whitehall, Kriss Akabusi, Johnny Borrell, Katy B, Alex Brooker S27E10 Warwick Davis, Tom Fletcher, Emma Willis, Alfie Boe, Chris Ramsey S27E11 Dizzee Rascal, Jamie Cullum, Aston Merrygold, Foxes, Katherine Ryan S27E12 The Hunt For The Missing Episode S27E13 Johnny Vegas, Brian McFadden, DJ Locksmith, Sara Pascoe and Jessica Hynes