She's only ever been dinky...
But Louise Redknapp has put some pounds back on, after she slimmed down to a size zero for a TV documentary.
Luckily for her, she's found it easy to return to a healthy weight.
She told the Daily Express: "It was really hard work and the results were quite scary. I've piled it all back on, though, but I'm very happy with my weight.
"We've just been on holiday to Barbados so that helped me fill out a little bit."
What, a holiday in the sun and being able to stuff your face - doesn't sound like too much of a chore.
After reaching the much debated size zero, what does Lou think about it all?
"I'm not sure what I think about size zero models.
"I think a lot of models are naturally very slim so people should be very careful about accusing them of having eating disorders."
You can see Louise all slimmed down in The Truth About Size Zero on ITV1 - coming soon.
Social bookmarking allows you to save and categorise a personal collection of bookmarks and share them with others. This is different to using your own browser bookmarks which are available within your web browser.
Use the links on the left to share this page on the social bookmarking site of your choice.
Read more about social bookmarking at: Wikipedia - Social Bookmarking