The British singer has daughter, Ava, three, and eight-week-old son Hero with boyfriend Graham Quinn, and admitted that being a mummy has taken its toll on her body.
Talking about losing her baby weight, she told new! Magazine, 'I've got a stone to go, but I don't feel I should lose it.
'I can tuck my boobs into my socks but I think, 'I've made a baby! My body's amazing!''
The 33-year-old said that she gets annoyed when people try to tell her what to eat.
'Chocolate buttons are the order of the day. But there are times when you order a muffin and people say, 'Do you think you should have that?'
'A woman said that to me in Starbucks recently. But I've been told to lose weight since the year dot, I'm used to it. I'm not naturally thin and I'm not a gym bunny. I want to eat.'