Jeremy Piven, David Tennant, Sarah Millican, Phil Taylor and Jake Bugg

S04 E01 • Saturday, Jan 5, 2013 • Jan 5 • 50m

Jamie Foxx, Paloma Faith, Micky Flanagan and Biffy Clyro

S04 E02 • Saturday, Jan 12, 2013 • Jan 12 • 50m

Jo Brand, Kimberley Walsh, Madness

S04 E03 • Saturday, Jan 19, 2013 • Jan 19 • 50m

Jonathan welcomes more big names, including Strictly Come Dancing runner-up Kimberley Walsh from Girls Aloud. Music legends Madness chat and perform live.

Jools Holland, Rose Byrne, Adam Hills, Alicia Keys

S04 E04 • Saturday, Jan 26, 2013 • Jan 26 • 50m

Jonathan welcomes king of boogie-woogie Jools Holland, the star of X-Men: First Class Rose Byrne, Australian funnyman Adam Hills, and Grammy-winning superstar Alicia Keys - who chats and performs.

Sir David Attenborough, Eddie Izzard, Russell Brand, Dolph Lundgren, Pulp

S04 E05 • Saturday, Feb 2, 2013 • Feb 2 • 50m

John C Reilly, Hayley Atwell, Hurts

S04 E06 • Saturday, Feb 9, 2013 • Feb 9 • 50m

Jonathan welcomes acclaimed actor John C Reilly and the beautiful Hayley Atwell - star of Captain America and Brideshead Revisited. Pop duo Hurts perform live in the studio.

Ant and Dec, Tim Roth, Ke$ha

S04 E07 • Saturday, Feb 16, 2013 • Feb 16 • 50m

Jonathan's guests tonight are the nation's favourite double act Ant and Dec, and actor Tim Roth. US music sensation Ke$ha also performs live in the studio.

Justin Timberlake, Joss Stone, Jason Manford, Tom Odell

S04 E08 • Saturday, Feb 23, 2013 • Feb 23 • 50m

Jonathan's guests include US superstar Justin Timberlake, British soul singer Joss Stone, comedian Jason Manford, and singer songwriter Tom Odell

Olga Kurylenko, Carol Vorderman, Jack Whitehall, Bruno Mars

S04 E09 • Saturday, Mar 2, 2013 • Mar 2 • 50m

Jonathan's guests include comedian Jack Whitehall, actress Olga Kurylenko, presenter Carol Vorderman and singer Bruno Mars, who also performs live in the studio.

Olivia Newton-John, Keith Lemon, Nicole Scherzinger

S04 E10 • Saturday, Mar 9, 2013 • Mar 9 • 50m

Jonathan welcomes the one that he wants - Grease star Olivia Newton-John, and the zany Keith Lemon. Pop superstar Nicole Scherzinger is in for a chat and performs live.

Matt Smith, Ruth Jones, Stereophonics

S04 E11 • Saturday, Mar 16, 2013 • Mar 16 • 50m

Jonathan welcomes more celebrity guests, including current Doctor Who Matt Smith, Gavin and Stacey writer and star Ruth Jones, and Welsh rockers Stereophonics, who also perform live at the end of the show.

Danny Boyle, Nicholas Hoult, Ian McShane, Bobby Womack, Damon Albarn

S04 E12 • Saturday, Mar 23, 2013 • Mar 23 • 50m

Jonathan's guests include film-maker and the mastermind behind the opening ceremony of the Olympics Danny Boyle, and stars of Jack the Giant Slayer Nicholas Hoult and Ian McShane. Plus music legends Bobby Womack and Damon Albarn chat and perform live.

James Nesbitt, Warwick Davis, Jourdan Dunn, Depeche Mode

S04 E13 • Saturday, Mar 30, 2013 • Mar 30 • 50m

Sir Ben Kingsley, Audrey Tautou, Carl Froch, Alt-J

S04 E14 • Saturday, Apr 6, 2013 • Apr 6 • 50m

Cast of Made in Chelsea, Suede, Martin and Gary Kemp, Julian Clary

S04 E15 • Saturday, Apr 13, 2013 • Apr 13 • 50m

Jonathan welcomes the cast of the E4 reality show Made in Chelsea, indie band Suede, singing-and-acting brothers Martin and Gary Kemp, and comedian Julian Clary.

Steve Coogan, Saoirse Ronan, will.i.am

S04 E16 • Saturday, Apr 20, 2013 • Apr 20 • 50m

Jonathan welcomes the man behind Alan Partridge, Steve Coogan, and Atonement, Hanna and The Lovely Bones star Saoirse Ronan. Music superstar will.i.am chats and performs live in the studio.

Russell Tovey, Peter Andre, Rudimental

S04 E17 • Saturday, Apr 27, 2013 • Apr 27 • 50m

Jonathan's guests include actor Russell Tovey, who stars in ITV's new sitcom The Job Lot, and singer Peter Andre. Live music is provided by the fantastic Rudimental.

Zachary Quinto, Zoe Saldana, The Illusionists, Thom York

S04 E18 • Saturday, May 4, 2013 • May 4 • 50m

Jonathan is joined by the stars of one of this year's biggest movies Star Trek Into Darkness - Zachary Quinto and Zoe Saldana. The Illusionists perform some incredible magic from their hit stage show, and Radiohead's Thom Yorke performs live.

Jamie and Louise Redknapp, Yoko Ono, Vin Diesel, The Illusionists

S04 E19 • Saturday, May 11, 2013 • May 11 • 50m

Jonathan's guests this week are Jamie and Louise Redknapp, artist and musician Yoko Ono, and Hollywood action-man Vin Diesel. Two of the world's greatest magicians from hit stadium show The Illusionists do something special, and new English rock band Bastille perform live.

Gemma Arterton, Lee Evans, Philip Glenister, Marc Warren, Max Beesley, Primal Scream

S04 E20 • Saturday, May 18, 2013 • May 18 • 50m

In the last show of the current series, Jonathan welcomes former Bond girl Gemma Arterton, the hugely popular comedian Lee Evans and actors Philip Glenister, Marc Warren and Max Beesley, who discuss the new third series of their hit drama Mad Dogs. Alternative rock legends Primal Scream also perform live.