The NTA-winning host returns with a 14th series of celebrity-fuelled antics, mischievous chat and music. Tonight, he's joined by all four coaches from The Voice UK - Rita Ora, Will.i.am, Ricky Wilson and Tom Jones - who talk about the forthcoming live shows, as well as Hollywood star Antonio Banderas, who appears in The SpongeBob Movie: A Sponge Out of Water. Plus, Gogglebox's posh tipplers Steph and Dom Parker drop in to discuss the new series, and Ella Henderson performs her latest single Mirror Man

Alan is joined by former soap star Michelle Keegan who drops in to discuss her new BBC drama, Ordinary Lies. Elijah Wood talks about his role in the new children's animation Over the Garden Wall, and South London magician Troy talks about his latest E4 series where he stuns unsuspecting members of the public with his distinctive blend of close-up magic, illusion and spectacular stunts. Actor Warwick Davis talks about Channel 4's Comedy Gala 2015 in aid of Great Ormond Street Hospital, while music comes from Irish folk duo Taylor Hudson who perform Chasing Rubies.

Alan is joined by surreal comedian Noel Fielding, who chats about his current stand-up tour, and football star Frank Lampard, who discusses his latest children's book, Frankie's Magic Football. Plus a chat with Denise Van Outen, and music from Lethal Bizzle, who performs his single Fester Skank.

The comedian looks ahead to this weekend's horse-racing event with Gok Wan and Nick Luck who are part of the Channel 4 presenting team, plus some surprise guests and equine themed fun and games. Other guests include Russell Brand, who chats about his latest film The Emperor's New Clothes, Game of Thrones star Maisie Williams talks about her role in the new movie The Falling and Nick Jonas, formerly of the Jonas Brothers, performs his new single Jealous live in the studio

The host is joined by chart star Nicki Minaj, who chats and performs her new single The Night Is Still Young, American actor Jeremy Piven, talking about the DVD release of Mr Selfridge series three, and comedian Paddy McGuinness, with news on his stand-up tour and his role in ITV sitcom The Delivery Man

The host welcomes property gurus Kirstie Allsopp and Phil Spencer, who discuss their forthcoming Channel 4 series Love It or List It, and comedy actor Stephen Mangan talks about his role in the new National Theatre play Rules for Living. There's music from rapper Charles Hamilton and The Voice judge Rita Ora, performing their single New York Raining

Alan is joined by Hollywood star Anna Kendrick, dropping in to chat about her new film Pitch Perfect 2, comedian Lee Mack, talking about the DVD box set release of his sitcom Not Going Out, and actor Danny Dyer, sharing details on his role in EastEnders. Music comes from Clean Bandit, who perform their latest single Stronger

Alan is joined by Billie Piper, who talks about her new series of Penny Dreadful, comedian Romesh Ranganathan drops in, and Phillip Schofield chats about the forthcoming Soap Awards, plus there's music from Charli XCX, who performs her new single, Famous, live in the studio.

Ahead of the semi-finals, Britain's Got Talent judges Amanda Holden and Alesha Dixon join Alan on the sofa. Nick Grimshaw chats about the Radio 1 Big Weekend in Norwich. Comedy actors Reece Shearsmith and Steve Pemberton talk about Inside No. 9. Live music is from The Vaccines who perform their latest single Dream Lover.

The comedian plays host to male model David Gandy, drag queen RuPaul, X-Factor co-host Caroline Flack, who discusses the new series of Love Island, and Maroon 5 lead vocalist Adam Levine, who joins the band to perform new single Sugar

Comedian and actor Peter Kay reflects on the success of his recent BBC One series Car Share, US actress Ellie Kemper talks about her online series Unbreakable Kimmy Schmidt, while American singer-actor Adam Lambert discusses his latest album and single Ghost Town. Plus, James Bay performs his single Hold Back the River

Record producer and musician Mark Ronson drops in for a chat and performs his latest single I Can't Lose, which features newcomer Keyone Starr. Jeremy Piven, Adrian Grenier, Kevin Connolly, Kevin Dillon and Jerry Ferrara line-up on the sofa to talk about their new movie Entourage, and Katherine Parkinson, Tom Goodman-Hill and Gemma Chan discuss their roles in Channel 4's new drama Humans.