S01E01 - Bruce Forsyth, Heather Graham, Ross Kemp, Pet Shop Boys S01E02 - Samuel L. Jackson, Ivana Trump, Katy Perry S01E03 - Jerry Springer, Martina Navratalova, Black Eyed Peas S01E05 - Kanye West, Mr Hudson, Fern Britton, Sarah Harding S01E06 - Mickey Rourke, Jonathan Ross, Denise Van Outen, JLS S01E07 - Kevin Bishop, Rupert Everett, Barbara Windsor, The Enemy S01E08 - Shane Warne, Patsy Kensit, Gok Wan and Calvin Harris S01E09 - Peter Andre, Natalie Imbruglia, Frank Skinner and The Noisettes S01E10 - Jack Dee, Amanda Holden, Alan Dale and Pixie Lott S02E01 - Mariah Carey, Noel Fielding and Simon Pegg S02E02 - Ruth Jones and James Corden, Chris Moyles, Westlife and Alesha Dixon S02E03 - Kate Hudson, Sharon Osbourne, Lily Allen S02E04 - Michael McIntyre, Chris Evans, Miley Cyrus S02E05 - Bette Midler, Johnny Vegas and JLS S02E06 - Christmas Special S02E07 - New Year Special S03E01 - Ricky Gervais, Katie Price, Corinne Bailey Rae S03E02 - Daryl Hannah, Nicholas Hoult, Sid Owen, Patsy Palmer, Mika S03E03 - Alex Reid, Jimmy Carr, Janice Dickinson and Kesha S03E04 - Courtney Love, Steve Jones and Rihanna S03E05 - Ant & Dec, John Barrowman, Jo Frost and Ellie Goulding S03E06 - Lindsay Lohan, Torvill and Dean, Frankie Boyle and Mary J. Blige S03E07 - Miranda Hart, Russell Howard, Justin Bieber, David Haye and Florence and the Machine S03E08 - Kim Cattrall, Boy George and N-Dubz S04E01 - Russell Brand, Pamela Anderson, Matthew Morrison, Kevin McHale, Jenna Ushkowitz and Plan B S04E02 - Katie Price and Alex Reid, James Corden and Enrique Iglesias S04E03 - Shakira, Louie Spence, Nikki Reed, Kellan Lutz, Ashley Greene, Xavier Samuel and Kelis S04E04 - Grace Jones, Gok Wan and JLS S04E05 - Kylie Minogue, John Bishop and Jared Leto S04E06 - Vic Reeves, Bob Mortimer, Ulrika Jonsson, Joanna Page and Scissor Sisters S04E07 - Alice Cooper, David Walliams and The Saturdays S04E08 - Robin Williams, Bobcat Goldthwait, Olly Murs, Jason Manford, Alex Jones, Tinchy Stryder S04E09 - Ricky Gervais, Stephen Merchant, Minnie Driver, Alexandra Burke S04E10 - Drew Barrymore, Gary and Danielle Lineker, Phill Jupitus and Goldfrapp S04E11 - Whoopi Goldberg, Jedward, Kim Cattrall and McFly S04E12 - Paul O'Grady, Katy Perry, Davina McCall and Brandon Flowers S05E01 - David Hasselhoff, Simon Bird, Joe Thomas, James Buckley, Blake Harrison, Colin Farrell, Jim Sturgess and Cee Lo Green S05E02 - Michael McIntyre, Stacey Solomon, Shaun Ryder and Cheryl Cole S05E03 - Chris Evans, Mickey Rourke, Catherine Tate and The Wanted S05E04 - Matt Lucas, Dame Edna Everage and McFly S05E05 - Jonathan Ross, Kevin Bridges, Jack Whitehall and Adele S05E06 - James Corden, Benedict Cumberbatch, Kerry Katona and Jamiroquai S05E07 - Billie Piper, Usher, Russell Tovey, Lenora Crichlow, Sinead Keenan and Duran Duran S05E08 - Juliette Lewis, Miranda Hart and The Streets S05E09 - Samuel L. Jackson, Lee Mack and JLS S05E10 - The cast of The Only Way Is Essex and Duffy S06E01 - Jennifer Lopez, Jonathan Ross, David Haye S06E02 - Elle MacPherson, Bruce Forsyth, Louis Walsh, Kaiser Chiefs S06E03 - Thandie Newton, Ben Miller, Jo Frost, Liam Gallagher S06E04 - Eddie Izzard, Chris Moyles, Prof. Brian Cox and Hard-Fi S06E05 - Matt Smith, David Hasselhoff, Taylor-Ann Hasselhoff, Hayley Hasselhoff; JLS S06E06 - Matt Horne, Jason Bateman, Charlie Day, Jason Sudeikis, Sherrie Hewson, Denise Welch, Carol McGiffin, The Kooks S06E07 - One Direction, Bradley Cooper, Stephen Merchant, Will Young S06E08 - Justin Timberlake and Mila Kunis, Cast of Inbetweeners, Jessie J S07E01 - Nicole Scherzinger, Simon Pegg, Nick Frost, Matt Cardle S07E02 - Westlife, Dermot O'Leary, David Walliams, Mary J Blige S07E03 - Gary Barlow, Kelly Rowland, Louis Walsh, Tulisa Contostavlos, Tinie Tempah, Terry Wogan, Kasabian S07E04 - Lady Gaga, Dannii Minogue, Peter Kay, Ed Sheeran S07E05 - Lee Evans, One Direction S07E06 - Stars of Life's Too Short, Ricky Gervais and Warwick Davis, as well as DJ Vernon Kay S07E07 - Christmas Special 2011 S07E08 - New Year Specstacular S08E01 - The Saturdays, Jimmy Carr, Tulisa Contostavlos and Paul Weller S08E02 - Eddie Izzard, David Walliams, Amanda Holden, the cast of Made in Chelsea and Gossip. S08E03 - Supreme Leader Admiral General Aladeen of Wadiya, Ray Winstone, Phillip Schofield, Holly Willoughby and Rebecca Ferguson S08E04 - Kim Kardashian, Sean Lock, Jon Richardson and Nelly Futardo S08E05 - John Bishop, Cuba Gooding Jr, will.i.am and Plan B S08E06 - Michael McIntyre, Kylie Minogue, Little Mix and Kaiser Chiefs S09E01 - Gok Wan, Adam Hills, David Weir, Eleanor Simmonds, Alex Brooker, Jody Cundy and Pink S09E02 - Matt Smith, Kelly Osbourne, Jack Whitehall, Greg McHugh, Joe Thomas, Zawe Ashton, Charlotte Ritchie, Kimberley Nixon, Jonnie Peacock and Example S09E03 - Jessie J, One Direction, Kevin McCloud and Alicia Keys S09E04 - Paddy McGuinness, Theo Paphitis, Deborah Meaden, Duncan Bannatyne, Peter Jones and Conor Maynard S09E05 - Cheryl Cole, McFly, Dara O'Briain, Leona Lewis S09E06 - Chris O'Dowd, Kelly Brook and JLS S09E07 - Gary Barlow, Louis Walsh, Tulisa and Nicole Scherzinger S09E08 - Jamie Oliver, Jimmy Doherty, Taylor Swift, The Wanted and The Killers S09E09 - Julia Davis, John Bishop, Melanie Chisholm, Emma Bunton, Geri Halliwell and Rita Ora S09E10 - Rhod Gilbert, Paul O'Grady, Noel Gallagher S09E11 - Kevin Bridges, Dermot O'Leary, David Walliams, Lawson S09E12 - Michael McIntyre, Keith Lemon, Will.i.am and Daley featuring Jessie J S09E13 - Davina McCall, Jon Richardson, Harry Hill and Rebecca Ferguson S09E14 - Gordon Ramsay, Sir Ian McKellen, Miranda Hart and Kylie Minogue S09E15 - Christmas Special: David Walliams, JLS, McFly and Hilary Devey S09E16 - The Chatty Man Mash Up S10E01 - Robbie Williams, Jack Dee, Dara O Briain, Melanie C, Jaime Winstone & Sue Perkins S10E02 - Ant and Dec, Joanna Lumley, Rylan Clark & The Vaccines S10E03 - Ryan Reynolds, The Saturdays & Sean Paul S10E04 - Russell Brand, Jools Holland, Terry Mynott & Tom Odell S10E05 - Brian Cox, Paul Gascoigne & Fall Out Boy S10E06 - Jennifer Saunders, Bill Bailey, Charlie Brooks & Fun S10E07 - JLS, Sarah Millican, Danny Dyer & Laura Mvula S10E08 - Bruce Forsyth, Steve Coogan, Jo Brand, Seann Walsh & Little Mix S10E09 - Rob Brydon, David Gandy, Amanda Holden & Jessie Ware S10E10 - Rod Stewart, Dawn O'Porter, Miles Kane & Made in Chelsea S10E11 - Zach Galifianakis, Ken Jeong, Ed Helms, Stephen Graham, Helen Flanagan & Olly Murs S10E12 - Clare Balding, Demi Lovato & Mark Owen S11E01 - Lee Evans, Keeley Hawes, Deborah Meaden, Peter Jones, Duncan Bannatyne, Kelly Hoppen, Sharon Osbourne and Rizzle Kicks S11E02 - Channing Tatum, Jamie Foxx, David Walliams, Kirstie Allsopp, Phil Spencer and MKS S11E03 - Sean Lock, Mel Giedroyc, Sue Perkins and Miley Cyrus S11E04 - Matthew Fox and Jessie J S11E05 - David Haye, Justin Timberlake and Rihanna S11E06 - Tess Daly, Ben Cohen, Abbey Clancy, Sophie Ellis-Bextor, David Mitchell and James McAvoy. S11E07 - Nicole Scherzinger, Johnny Knoxville, Gok Wan and One Republic S11E08 - Britney Spears, Mo Farah, Joseph Gordon-Levitt and Jake Bugg S11E09 - Amanda Holden, Jared Leto and Icona Pop S11E10 - James Corden, Tom Hiddleston, Joan Collins and Tinie Tempah S12E01 - Gary Barlow, Ricky Gervais, Jessica Hynes, Kermit and Constatine S12E02 - Grand National Special S12E03 - David Walliams, Amanda Holden, Alesha Dixon, Jennifer Saunders, Noel Edmonds, The Vamps S12E04 - Cameron Diaz, Leslie Mann, Kate Upton, Paul Hollywood, Paddy McGuinness, Katy B S12E05 - Martin Freeman, Lindsay Lohan, Dr. Christian Jessen, The Kooks S12E06 - Heston Blumenthal, Frank Skinner, Seb Cardinal and Dustin Demri-Burns, Paloma Faith S12E07 - John Torode, Gregg Wallace, Lily Allen, Courtney Love S12E08 - Kylie Minogue, Ian McKellen, Nick Grimshaw S12E09 - John Cleese, Mary Portas, Ellie Goulding S12E10 - Amanda Seyfried, Adam Hills, Jason Biggs, Taylor Schilling, Danielle Brooks, Laura Prepon, Foxes S12E11 - Kevin Bridges, Carrie Fisher, Channing Tatum & Jonah Hill, Example S12E12 - Pharrell Williams, Cher Lloyd and Nicole Sherzinger S12E13 - Summer Special S12E14 - Summer Special S12E15 - Summer Special S16E01 - Matthew Perry, Phillip Schofield, Caitlin Moran, Cast of Raised by Wolves, The 1975 S16E02 - Rod Stewart, Stephen Mangan, David Coulthard, Steve Jones S16E03 - All Saints, Steve Coogan, Michael Socha, Michaela Coel, Rob Delaney S16E04 - Will.i.am, Boy George, Paloma Faith, Ricky Wilson, Jack Whitehall, Charlotte Ritchie, Joe Thomas, Greg McHugh, Years and Years S16E05 - Jimmy Carr, Ariane Grande, Izzy Bizu S16E06 - Jamie Oliver, Amanda Holden, Alesha Dixon, Fifth Harmony S16E07 - Jon Favreau, Eddie Izzard, Shawn Mendes S16E08 - Michael McIntyre, Scarlett Moffatt, Jack Garratt S16E09 - Elizabeth Olsen, Anthony Mackie, Don Cheadle, Hugh Grant, Simon Helberg, Piers Morgan, Susanna Reid, Laura Mvula S16E10 - Maisie Williams, Anna Friel, Nick Grimshaw, Alessia Cara
