The Masked Singer was a “no-brainer”.Even if it meant getting by on two hours of sleep some nights while working across both projects!WATCH BELOW: Masked Singer contestant loses their prop head in new trailerThe star adds: “It’s a bit of a punish in terms of the hours but it’s so much fun on set, it doesn’t feel like a day at work at all.”But the 46-year-old doesn’t sugar-coat the fact that over the years that same busy work schedule wreaked havoc on her sleeping patterns, her desire to exercise and what she was eating.“When you’re busy and tired, it’s easy to spiral into bad habits for sure,” she tells WHO.Jackie O recently signed on as a WW (formerly Weight Watchers) ambassador and has lost an impressive 10kg since starting the program in.