Adele Roberts has revealed that she was undergoing chemotherapy during her appearance on the Great British Celebrity Bake Off.The radio star, 44, who announced she was cancer-free in June last year, revealed in October 2021 that she had been diagnosed with stage two bowel cancer, and later had surgery to remove a tumour and began using a stoma bag. Adele was taking part in a special celebrity edition of the hit baking show, which is pre-recorded and it aired on Sunday, to raise vital funds for the Stand Up To Cancer campaign.Taking to Twitter after the show aired, Adele revealed that she was undergoing chemotherapy while on the show and had an ice machine to keep her cool. Responding to a fan, she wrote: "Thank you so much Ryan! I was actually on chemo in the tent.