The line up of celebrity contestants for Great British Bake Off's Celebrity Special 2018 and start time have been confirmed.
But when does GBBO's all star special start on TV and who's on the line up?
Just like when it was on BBC One, the Great British Bake Off on Channel 4 will see a number of celebrity shows for charity.
During its time on the BBC, Bake Off aired specials for both Sport Relief and Comic Relief while Channel 4's charity version will be in aid of Stand Up For Cancer.
Here's all we know about the specials...
Great British Bake Off celebrities contestants line up
There will be five episodes with four celebrities appearing in each.
In the first episode, the four brave celebrities ushered into the Bake Off tent were comedian Harry Hill, Spandau Ballet's Martin Kemp, actor and writer Roisin Conaty, and veteran broadcaster Bill Turnbull.
Taking part in Episode 2 were Countdown's Nick Hewer, singer and TV personality Stacey Solomon, The Kaiser Chiefs' Ricky Wilson and dance troupe Diversity's Perri Kiely.
Tonight sees Leader of the Scottish Conservative Party Ruth Davidson, musical comedian Tim Minchin, Made in Chelsea’s Jamie Laing and singer Ella Eyre.
Next week will be comedian and actor and presenter Griff Rhys Jones, comedian Lee Mack, Broadcaster Melanie Sykes and comedian Joe Lycett.
In the fifth and final episode the line up is actress, author and Host/Creator of the YouTube channel Hatching Change Teri Hatcher, Paralympic gold medallist Kadeena Cox, comedian Alan Carr and comedian and actor Aisling Bea.
Great British Bake Off celebrity special start date
The charity specials see a new line up of all star names each week who take part in three challenges before one celeb is crowned Star Baker.
The start time has now confirmed for TONIGHT, Tuesday, March 20 at 8PM.
Channel 4's episodes of Bake Off will run for 75 minutes, albeit with adverts.
The Celebrity editions will follow the first main series of Great British Bake Off which aired last autumn on Channel 4.
Meanwhile, Great British Bake Off will return for a main series later in 2018.