The 24-year-old singer - who split from her fiance Gavin Henson in May - is known for her fluctuating shape and admits her eating and exercise habits are affected by her emotions. She said: "Generally, for me, slimness comes with a little bit of upset or stress. Whereas when I▓m happy I tend to get a little bit bigger. Which is fine. I`d rather be fat and happy, to be honest." However Charlotte - who has two children Ruby, three, and 21-month-old Dexter with Gavin- revealed her most recent weight loss was inspired by wanting to regain the figure she had before becoming a mother. She told heat magazine: "I was just fed up. Fed up of having massive bingo wings. I thought, `I`m in my early twenties and, yeah, I`ve had two kids, but there`s no reason why I shouldn`t look like I did before I had two kids. `So I just ate less. I still ate whatever I wanted, just less of it. I halved the portions of everything I ate." The `Crazy Chick` hitmaker added that being thin hasn`t made her glamorous and she can`t always be bothered to make an effort with her appearance. She said: "Some people will only go out the door if they look fabulous. I`ve got better things to do with my time, to be honest. Sometimes I wanna make an effort, because I`m a woman and I`ll want to be bothered and put a bit of a slap on and wear something nice. But sometimes I`ve been up with the babies and I`ll think, `Sod it, I`ll go out with wet hair and no make-up and a dodgy tracksuit on.` "