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

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

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 version of the Batman villain costume, which she dubbed: ‘MONEY IVY’

Hell on heels: It was paired with some black fishnet stockings tucked into some black thigh-high patent leather stilettos

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

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

Spin that! Cardi spun a set as the audience danced the night away

Feeling the spirit: She twerked in her costume for the energetic crowd

Twerking for Christ: She also twerked backstage with a drink in hand as another performer took the stage

In the mood: 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!’

Cardi channeled some 1997 Uma Thurman with a much longer and fuller update on the actress’s ‘do from Batman & Robin.

She showed some skin in a sexy metallic green costume, consisting of thigh-high stiletto boots and matching fingerless gloves with leafy lingerie.

She also posted to her story with some of her favorite fan costume versions of herself.

One fan flawlessly recreated the artist’s look from her Invasion of Privacy album cover.