And, her first costume is finally here.

This year, her bestieKendall Jennergot in on the fun and joined Bieber for an iconic matching blonde moment.

While we’d wager Bieber’s hair change is a wig, Jenner’s might just be extensions.

Hailey Bieber and Kendall Jenner at the Academy Museum Gala.

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Bieber’s hair was crafted byJared Henderson, while Jenner worked withIrinel de Leon.

The makeup was similarly on-point.

Makeup artistDiane Buzzettaopted for wispy mascara, gloss, and pink blush for a softer look on Jenner.

Kendall Jenner and Hailey Bieber as Paris and Nicole.

@amberasaly/Instagram

Halloween is in full swing.