Let's Sing and Dance for Comic Relief 2017 kicks off tonight, and here's the list of confirmed celebrities taking part in the first heat this evening.
Fronted by Mel Giedroyc and Sue Perkins, the showdown kicks off on the 3 March and will span four weeks, with three star-studded Saturday night heats culminating in a grand final on the 25 March.
Each week, us viewers at home will get the chance to vote for their favourite act who will gain a place in the final.
Once again celebrities will don more fantastic outfits and learn more iconic dance routines for Comic Relief, but this time the brave celebrities will be facing double the challenge – dancing and singing!
The performing celebs will be judged each week by a panel of top TV personalities but it'll be viewers who decide the top performers. The one celeb with the most votes will go through to the final while the judges will choose who else will make the final.
So which celebs are on Let's Dance this year? Here's the line up - and songs - from this Saturday night's first heat.
Let's Sing and Dance 2017 celebs line up
Astrologer Russell Grant
Chain Reaction by Diana Ross.
Stand-up comedian and actress Sara Pascoe
Chandelier by Sia.
Actresses Harriet Thorpe and Helen Lederer
Dancing Queen by ABBA
Superbass by Nicki Minaj
Rickie Haywood Williams and Melvin Odoom
Medley of Will Smith’s biggest music hits.
Who will you be backing to make the final tonight?
Let's Sing And Dance starts tonight at 6:45PM live on BBC One.