A spike bun is an updo with an edgy twist. Its signature feature are the wisps of hair that stick out (artfully, hopefully) ...

From loose beach waves to ultra-sleek, straight finishes ... @khloekardashian The reality star and entrepreneur paired the very Y2K hairdo with an equally nostalgic makeup look: high-contrast ...

Cofone combined pin-straight hair with uniform crimps ... glow serums to calm any flyaways and add that Y2K-style shine.