Stars from Heartstopper and Strictly Come Dancing will also be paying a visit to the werk room this time around.
The chart-topping singer and partner Darren Randolph welcomed their first child in June 2022.
"Welcome to the world our little grape..."
The couple shared their happy news on Instagram.
"I loved my time on the Strictly dance floor but I’ve had to put the rest of that period behind me and I’ve had to have therapy to do that."
Twenty famous faces will be put through their paces in the tent in aid of Stand Up To Cancer
The 2008 winner of the ITV talent show explained how she and the megastar "literally blagged it”.
The singer has been accused of cultural appropriation after she was seen sporting Bantu knots and a Jamaican flag-print bikini.
Alexandra Burke Details Racism She's Experienced Throughout Her Career: ‘I Was Told To Bleach My Skin’
The singer, who was crowned winner of The X Factor in 2008, spoke out in an Instagram video she shared with fans.
Her most recent release only reached number 16 in the charts.