Demi Lovato has announced they are non-binary and has changed their pronouns to they/them.

Non-binary people don't identify as male or female and use the pronouns they or them instead of he or she.

In a video shared to fans on Twitter and Instagram on Wednesday, the American singer said they wanted to "share something very personal with you.

"Over the past year and a half I've been doing some healing and self-reflective work and through this work I've had the revelation that I identify as non-binary.

"With that said I'll officially be changing my pronouns to they/them. I feel that this best represents the fluidity I feel in my gender expression and allows me to feel most authentic and true to the person I both know I am, and am still discovering."

They continued: "I want to make it clear that I'm still learning and coming into myself and I don't claim to be an expert or a spokesperson."

After posting the video, Lovato wrote on Twitter: "I'm doing this for those out there that haven’t been able to share who they truly are with their loved ones. Please keep living in your truths & know I am sending so much love your way xox."

They added that "sharing this with you now opens another level of vulnerability for me."

Lovato said they will speak to other non-binary people in a video series about gender identity.

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