Demi Lovato is not shy about her outspoken support for the lesbian, gay, bisexual and transgendered (LGBT) community.

Last month, the 21-year-old superstar singer was the Grand Marshal of LA Pride and held a concert at NYC Pride events.

The event in Los Angeles served as the backdrop for the official video to her recent hit single, “Really Don’t Care” which countered images of anti-gay demonstrators with images of LGBT pride.

Now Lovato has teamed up with the Human Rights Campaign (HRC) to star in a public service announcement (PSA) for marriage equality as part of their Americans for Marriage Equality campaign, which seeks to advance marriage equality nationwide.

“I believe that love comes in all different shapes, sizes and colors,” Lovato said in the spot. “So whether you’re LGBT or straight, your love is valid, beautiful and an incredible gift. So let’s protect the institution of marriage by allowing loving, caring and committed same-sex couples to legally marry.”

HRC’s video campaign includes professional athletes, film and music celebrities, and political and civic leaders speaking out in favor of marriage equality.

On her Facebook page on Wednesday, Lovato said she was proud of joining the HRC.

“It’s time we all stand up for what is right and let our voices be heard,” she wrote. “Join me in support of loving same-sex couples and the right to marry who you love.”

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