Comic Relief's Big Chat With Graham Norton

Graham Norton takes over BBC Three for the whole night to host the biggest chat show ever.

The host will be attempting to set the Guinness World Record for 'Most Questions Asked on a TV Chat Show' - all in aid of Comic Relief.

Graham Norton says: "David Walliams swam the Thames, John Bishop endured a week of hell and Eddie Izzard ran marathon after marathon after marathon. I am hoping to join this elite group of celebrity fundraisers by doing what I do best - sitting on my backside and talking."

Guests who will be joining Graham in the studio include: Ronnie Corbett; Sarah Millican; Martin Freeman; Jimmy Carr; Lee Mack; Keith Lemon; Elle Macpherson; James Nesbitt; Paddy McGuinness; Heston Blumenthal; Louis Smith; Aston from JLS; Got To Dance judges Ashley Banjo and Kimberly Wyatt; Warwick Davis; Alex Jones and Steve Jones; Russell Tovey; and Kirstie Allsopp. Plus musical performances will include Example, Paloma Faith, Hurts and Laura Mvula.

In order to cope with the galaxy of stars in the studio, Graham will be assisted throughout the evening by a number of co-hosts; from chat-show veterans such as Sir Terry Wogan and Frank Skinner to BBC Radio 1 Breakfast Show presenter Nick Grimshaw. The co-hosts will ensure Graham remains on track to hopefully smash the world record and raise as much money as possible for Comic Relief.

In addition to all this, Greg James will be on-hand all night hosting the Big Chat Backstage Party, making sure that the guests are well looked after before they come into the studio for their interviews with Graham.

Viewers can help Graham raise money for Comic Relief by choosing to give either £5 or £10 and then texting FIVE or TEN to 70510. You can also help Graham break the world record by submitting questions for him to ask his guests via Twitter (#bigchat) or by visiting the BBC Three Facebook page.