The best Halloween treat.

@xtina/Instagram

Christina Aguilera’s bouncy blonde curls and iconicY2K stylewere an essential part of my childhood.

The singer revived her bouncy blonde curls with a spooky sexy leopard print Halloween look.

Xtina with blonde hair.

@xtina/Instagram

Aguilera celebrated Halloween eve by posting a slideshow of selfies toInstagramwith her curly hair front-and-center.

Each strand was formed into a spiral that looked extra shiny and sleek with the camera flash.

Makeup artistLora Arellanocrafted Xtina’s spooky glam for the night which included a statement bloody eye look.

Xtina with curly hair.

@xtina/Instagram

The finishing touch was Aguilera’s glossy red lipstick.

The singer styled a long velvety leopard print dress with shimmery fishnet stockings and crystal heels.

The Y2K trend isn’t going anywhere if Aguilera can help it.

Xtina with curly hair.

@xtina/Instagram

Her nostalgic big curls are the best Halloween treat.

Xtina with curly hair.

@xtina/Instagram