Demi Lovato has always been passionate about LGBT rights, and now we know why! While presenting an award at Logo TV's Trailblazers event, the singer revealed a secret — one of her grandfathers was gay.

"I've never spoken about this before, but my grandfather was a trailblazer himself," Demi said on stage. "He was brave enough to come out in the 1960s, and I feel that a lot of my spirit has come from him. He passed away a few years later and I only wish he could have been able to see all the progress that has been made."

Her family seems really important to her recently (remember that heartbreaking tweet she made about her dad a few days ago?), so we think this is totally sweet. Plus, it looks like the "Neon Lights" singer is keeping up her grandfather's legacy by staying active in the LGBT community — she's done everything from tweeting support for gay marriage to acting as the grand marshal for the gay pride parade in Los Angeles. We're in awe.

What do you think about Demi's big reveal? Do you think she's doing a good job of honoring her grandpa? Sound off in the comments!