That said, you might consider Bella Hadid one of the exceptions. If any modern supermodel has a penchant for changing her hair, it's Bella. She's no stranger to faking it with extensions or a clip-in fringe on any given occasion, but when it comes to cutting her hair for real, she always goes for one cut in particular: the bob. Not only is it consistently trending in L.A. (no matter the season), but it's also one of those hairstyles that triggers instant nostalgia. In fact, dare we suggest that Hadid's cut is slightly inspired by another supermodel of the '90s