Fergie, Brittany Snow and Ashlee Simpson are a trio of celebs on a mission.
And it's all to do with body image.
They've signed a Body Peace Project Treaty aimed at changing the way young girls view their bodies.
The trio want teens to stop obsessing about the shape of their bodies and have joined together with the US mag Seventeen, to deal with the issue.
They've launched a year-long project to help girls with unhealthy body image issues and problems with eating disorders.
Editor in Chief Ann Shoket said: "So many girls feel awful about themselves."
This is a subject especially close to Brittany Snow's heart, she recently revealed that she suffered from anorexia and bulimia.
And now she's managed to overcome her problems she's keen to offer a helping hand to lasses battling with the same probs.
Good for you girls.






















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