Which ex-act has the best hair evolution, their ability to change their hairstyles over the course of their career, while trying new things and still managing to remain in style and create social media buzz and headlines.
I'm aware that they have had many recent hairstyles over the years. Ex. Demi colouring her hair the colors of the rainbow or Miley going ombre to honey brown. Feel free to include references to other hairstyles your fave has had and explain why they were so significant!