Add Yahoo as a preferred source to see more of our stories on Google. Ponytails are the plain white t-shirts of the hair world. The most casual version is great for the gym (or super-sweaty summer ...

Ponytails are having a moment—but let’s be honest, did they ever really go out of style? Long before the slicked-back runway looks and red carpet reinventions, the ponytail has been a forever fixture ...