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Demi Lovato Backs Same-Sex Marriage for Online Campaign: Watch

Demi Lovato
Jonathan Alcorn/Reuters/Landov

June 8: Demi Lovato serves as grand marshal during the 44th annual Los Angeles Pride parade in West Hollywood, California.

Singer Demi Lovato is voicing support for same-sex marriage in a new web video.

The former Disney Channel star and judge on Fox's canceled The X Factor is the face of a re-launch of the Human Rights Campaign's Americans for Marriage Equality. HRC promises more celebrity endorsements to come.

"I believe that love comes in all different shapes, sizes and colors," Lovato says in the 45-second clip. "So whether you're LGBT or straight, your love is valid, beautiful and an incredible gift. ...Please join me in supporting the majority of Americans who support marriage equality."

Demi Lovato Invades L.A. Pride in 'Really Don't Care' Video: Watch

Jason Collins, Whoopi Goldberg  Lovato's voice is a powerful one among her youthful fan base, which boasts 20 million Twitter followers and 30 million Facebook fans. The singer has made anti-bullying a cornerstone of her public life, most recently having served in June as the grand marshal of the Los Angeles gay pride parade. The celebration served as the backdrop for the music video for her latest single, "Really Don't Care."

  • This article originally appeared at THR.com.