Demi Lovato Demi Lovato

Demi Lovato revealed at an event Tuesday that her grandfather was gay.

"I've never spoken about this before, but my grandfather was a trailblazer himself," Lovato said while filming a segment for Trailblazers, an upcoming Logo special that honors LGBT civil rights pioneers. "He was brave enough to come out in the 1960s, and I feel a lot of my spirit has come from him."

Out and proud celebrities

Lovato, 21, opened up about her grandfather while introducing one of the night's honorees, Orange Is the New Black. "He passed away a few years later, and I only wish he could have seen all the progress that has been made," Lovato said. "It's such an honor to be welcomed and embraced by the LGBT community."

Trailblazers, which airs Thursday at 9/8c on Logo, will also feature appearances by President Bill Clinton, Daniel Radcliffe, Adam Levine, Jared Leto, Ed Sheeran, Iggy Azalea and Macklemore and Ryan Lewis.

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