North West keeps Kim Kardashian on her toes.

The reality star dressed as her eldest daughter for Halloween, looking like the spitting image of blue-haired North.

But, the Skims founder revealed her muse had a hand in perfecting the look, of course.

Kardashian chatted about the transformation at Monday night’s NYC premiere of “All’s Fair” Season 2.

Speaking with Entertainment Tonight, the Skims founder shared that the homage was North’s idea.

Once, dressed, she said, “I thought I was killing it and I was, like, fully ready.”

Kardashian continued, “And then I go in the other room, and she’s like, ‘No, no, no. Wrong shirt! I would never wear that skirt. Where did you get those lashes?’ So she redid it for me and made it amazing and perfect.”

For her look, Kardashian wore a black graphic tee, long blue wig, North’s own Alex Moss-designed diamond skull pendant necklace and overgrown nails.

She even re-created West’s controversial face piercings.

Kim wasn’t the only celeb to dress as North this year; after the teenager transformed into “Bad Girls Club” star Natalie Nunn, she flipped the script and showed off her own blue-haired West costume.