A bob hairstyle is quite possibly the most classic look you can opt for, but that doesn't mean it can't feel cool and modern. The joy is that this hairstyle is timeless. The fact that Natalie Portman's 2003 flapper-style bob doesn't look outdated helps prove the point. The great thing about a bob is that when cut right, it can suit most hair types and face shapes. Take a look through our gallery for the 10 bob hairstyles we're totally obsessed with right now (singer Kacy Hill's in particular), and be prepared to feel a twang of Ooh, I want a haircut.