Mariah Harmony of the Animal Planet hit Pitbull & Parolees loves Halloween — so it makes sense that she got engaged on her favorite holiday.

PICTURES: Mariah Harmony’s Surprise Engagement

RumorFix has learned exclusively the 21-year-old was surprised with the proposal in the French Quarter, while she and her girlfriend, Florencia Carcagno, were dressed as skeletal versions of Mickey and Minnie Mouse.

“She asked my mom first. My mom [Tia Torres] and her planned the whole thing,” Mariah tells RumorFix exclusively.

The ring is a mold from an old Victorian ring. “I didn’t want diamonds,” the dog rescuer says. “I just wanted a band. It’s a gold ring with a red ruby on it — it’s beautiful!”

PICTURES: Mariah Harmony & Florencia Carcagno

Mariah, who came out three years ago, says she doesn’t want to be labeled as gay or bisexual.

She says she’s not going to rush into getting married, but there are a few things she knows for sure — she wants her wedding on Halloween (her mom is a Wicken and she holds some of the same beliefs), she wants to wear a black dress and she will have men and women standing by her.

Congratulations!