Cardi B channels the not-so-holy spirit in sexy nun costume for Halloween ...

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Cardi B set pulses racing on Thursday when she unveiled her sexy Poison Ivy Halloween costume.

But the green villainess wasn't the only look she had up her sleeve for the day's festivities as she took to Instagram to reveal a sinister play on a holy idea.

She channeled the not-so-holy spirit as she took to the stage at the Halloween party Demon Dome in Las Vegas wearing a nun's habit.

Holy spirit! Cardi B channeled the not-so-holy spirit as she took to the stage at the Halloween party Demon Dome in Las Vegas

Holy spirit! Cardi B channeled the not-so-holy spirit as she took to the stage at the Halloween party Demon Dome in Las Vegas

The 27-year-old sported a full white nun habit, complemented with a set of black Rosary beads.

She traded in the tradition black religious gown for a skintight black leather corset over a matching latex one-piece, which accentuated her ample cleavage.

Her ensemble was paired with some black fishnet stockings tucked into black thigh-high patent leather stilettos.

She completed the look with long black latex gloves, cut at the finger tips to show off her deadly red manicure.

Bad habit: The 27-year-old sported a full white nun habit, complemented with a set of black Rosary beads

Bad habit: The 27-year-old sported a full white nun habit, complemented with a set of black Rosary beads

Serving body: She traded in the tradition black religious gown for a skintight black leather corset over a matching latex one-piece, which accentuated her ample cleavage

Serving body: She traded in the tradition black religious gown for a skintight black leather corset over a matching latex one-piece, which accentuated her ample cleavage

The Bodak Yellow artist performed to a packed house at KAOS Nightclub for the Halloween event.

She twerked backstage in full costume with a drink in hand as another performer took the stage. 

Cardi recorded a video of herself modeling the costume in her dressing room mirror, as she made some graphic noises, and saying: 'Let's go f*** my husband!'

She also opted for Poison Ivy as her Halloween inspiration for another costume she posted to Instagram.

She posted some snaps in a sexy

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