It's a celeb version of Fame Academy in aid of Comic Relief.
All the old teachers will be back but this time it'll only last a week.
On the first night (Friday 7 March) nine stars will sing to get in the Academy.
But the public will vote for their faves, and only eight will get into the Academy.
Then, each night, different celebs will be up for expulsion, and they'll have to sing for survival.
The final will happen on Comic Relief night, 14 March.
There will also be special guests all week.
And each time someone votes for their fave student, Comic Relief will get some cash.
What is it?
