From Doechii's Paris Fashion Week blowout to Miley's controversial jellyfish cut, these haircuts, hair colors, and hairstyles ...

The Tinkerbell pixie, as Tom explains, is on the longer side of the head-hugging shape and incorporates a subtle asymmetry ...

"I'm a long hair girl, let it grow back. I'd be so sad if I did that," said one user in reaction to the drastic style change.

"Pixie cuts work wonders with fine to medium hair, but they can also be styled on thick hair with the right layers," Jordanna explains. Think: The shorter the hair, the thicker the appearance.