When is Celebrity Bake Off 2019 on tonight, who is in the line-up and when does GBBO return to Channel 4?

THE Great Celebrity Bake Off is back for one more episode.
Buy who is taking part in the final show? We have all the details.
The last episode of Great Celebrity Bake Off for Stand Up to Cancer will air TONIGHT (April 2, 2019) at 8pm on Channel 4.
It's filmed in the usual tent, with the bakers going through fifteen different challenges - that's three a week - and a winner being chosen each week.
Last year’s series aired in March and saw Bill Turnbull reveal his own cancer diagnosis.
Well-known faces trying to impress judges Paul Hollywood and Prue Leith.
Tonight (April 2, 2019) will see the below stars taking part:
The following stars have already taken part:
The Great Celebrity Bake Off for SU2C is in aid of the charity Stand Up To Cancer.
Each week four different celebrities must compete in three separate baking challenges.
The first is the signature bake, followed by the feared the technical challenge and finally the showstopper.
At the end the judges determine who is deserving of the title Star Baker.
The judges are Paul Hollywood and Prue Leith.
Prue joined the line-up after Mary Berry quit when the show moved to Channel 4.
Noel Fielding and Sandi Toksvig, who replaced Mel Giedroyc and Sue Perkins, will be presenting this show.