Season 4

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

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.

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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.

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.

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

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

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.

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.

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.

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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.

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.

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.

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.

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.

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.