Depending on how it's styled, the micro bob is versatile. "It can be worn pin-straight for that glass-like shine, with a soft bend for Parisian ease, or tousled for a cooler, undone look," Hayes says.

Ever contemplated, "How short can a bob hairstyle actually get?" Well, prepare to be shocked—because it can go micro short. That's right, we're talking cheekbone-grazing, jaw-baring, get ready for ...