Demi Lovato Speaks Out On Cyber Bullying On Twitter

03/12/2012 12:51 pm ET | Updated Mar 12, 2012

Demi Lovato has always been outspoken when it comes to being a bullying victim, and the singer took to Twitter Sunday to blast those harassing her and others on the social networking site.

Lovato, whose eating disorder documentary, "Demi Lovato: Stay Strong," debuted on MTV in March, has admitted that online bullies eventually led her to hurt herself. In the film, she refers to "comments from strangers online, saying 'This girl looks horrible, she looks fat.'" Those hurtful comments contributed to Lovato's struggles with eating disorders and cutting.

Today, Lovato is on the mend and hopes to help other teens who are going through tough times. She's currently fighting, along with other celebrities, to repeal the "R" rating on "Bully," a new documentary centering on the intense bullying many children and teens face today.

Lovato isn't the only young singer to take a stand against anonymous Internet haters, either. Miley Cyrus recently called on Twitter to take action against online bullying after she received threatening messages via the site.

Check out photos of Demi Lovato below:

Demi Lovato

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