Aside from our friends and up-and-coming beauty experts, the reason we stay glued to our Instagram feed is our favorite celebrities. Getting a sneak peek into their fabulous lives — especially their beauty routines — makes us fangirl even harder. We're particularly into their hairstyles. It seems like every other day, stars are getting a haircut, dyeing their strands, or even shaving it all off! See their best new looks when you read on.