It's Operation Transformation - in September - just to really mess with your TV body clock. This is no ordinary series though as for the second year in a row, Kathryn Thomas and the gang help the celebs with the battle of the bulge. Looking to get into shape are X Factor singer Mary Byrne, beauty expert Triona McCarthy, chef Gary O'Hanlon, social media influencer James Patrice and singer and (former contestant on The Voice) Kayleigh Cullinan.