Little Mix join The Big March anti-bullying campaign
Little Mix are backing BeatBullying and its #DeleteCyberbullying project, which is aiming to stop bullying and cyberbullying across Europe.
The Big March, which is calling on the European Commission to improve commitments to anti-bullying projects, will take place on 11 June.
It will see avatars of supporters march across websites instead of streets.
Former JLS member Aston Merrygold and Made In Chelsea's Jamie Laing are backing the cause.
Pop stars and models from across Europe have also signed up to the campaign.
Leigh-Anne Pinnock from Little Mix said: "Myself and the girls have all experienced being bullied at some point in our life.
"When we see on Twitter that some of our fans are going through it now we find it so upsetting and that's the reason we feel so passionate about this campaign and the work that BeatBullying does."
A key aim of the Big March calls on the European Commission to introduce new laws to protect the right of European children to live without fear of bullying and cyberbullying.
The campaign is also calling for 77 million euros (£57m) to be set aside for services that prevent and protect European children from bullying and cyberbullying.
It is also proposing an annual awareness day to promote the anti-bullying movement across Europe.
Brands including Disney, Moshi Monsters and Storm Models are also backing the Big March.
Emma-Jane Cross, CEO of BeatBullying, said: "People from across Europe want more to be done to tackle bullying and cyberbullying.
"The Big March gives everyone the opportunity to support this important cause.
"We urge the citizens of Europe, schools and NGOs and companies alike to join The Big March and help change thousands of young lives forever."
To join The Big March, visit the BeatBullying website
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