The first batch of competitors has been revealed: 

• Astrologer Russell Grant performing the 1980’s iconic disco hit Chain Reaction by superstar diva Diana Ross.
• Actress Sally Lindsay will be Noddy Holder singing the rock classic Cum On Feel The Noize by the legendary Slade.
• Stand-up comedian Sara Pascoe will take on a pop routine from one of the most viewed YouTube videos ever receiving over a billion views, the sensational chart-topping hit Chandelier by Sia.
• Actresses Harriet Thorpe and Helen Lederer will perform one of ABBA’s greatest ever pop songs Dancing Queen which topped the charts worldwide.
• Stars of Casualty and Holby City made up of Chizzy Akudolu, Tony Marshall and Amanda Henderson will do a special rendition of the huge hit phenomenon Uptown Funk by Mark Ronson ft. Bruno Mars.
• And there will be a spectacular supergroup performance from The One Show reporters featuring Angellica Bell, Iwan Thomas, Alex Riley, Michelle Ackerley and Dominic Littlewood. Details of their performance will be revealed soon.

Let’s Sing and Dance for Comic Relief is the new version of Let’s Dance for Comic Relief. This time celebrities will be facing double the challenge – dancing and singing.

The performers will face three live heats before a live grand finale. A combination of the viewers at home and the judging panel will decide who makes it through to the final, with the audience crowning the eventual winner, all in aid of Comic Relief.

Sara Pascoe says: "The show-off in me is so, so excited. The sensible person in me believes I have made a terrible mistake!"

Harriet Thorpe and Helen Lederer are known as the Absolutely Fabulous’ eccentric duo Fleur and Catriona. Harriet says: “Fleur says singing and dancing are her 'words de jour' and she is looking forward to exposing her hidden talents #CantWait #OnTheStartingBlock #Abba-SolutelyFabulous.” Helen added: “Beyond delighted that Catriona and Fleur have been invited to give their bodies and voice for Comic Relief, and in such talented company. Very humbled and excited to be standing by for some lovely costumes and free Abba tips.”

Let’s Sing and Dance for Comic Relief will be hosted by Mel Giedroyc and Sue Perkins marking their return to BBC One. As well the performances in the studio, the show will hit the streets of Britain to enlist the great British public in some of the biggest dance-offs ever. And with some surprise special guests in store, Saturday nights will be jam-packed of performances from some of the nation’s favourite faces.

Saturdays, BBC1 from March 4. First edition goes out at 6.45pm.

Red Nose Day is on Friday 24 March 2017. To get involved go to rednoseday.com