Jessica Simpson looks absolutely sexy in this long wavy brunette ponytail. Jessica Simpson, who usually sports long blonde tresses, really should try this hairstyle more often, it takes away from the messy long blonde styles she is known to wear. This hairstyle in general looks great — the waves add a lot of body to the hair, without being a run-of-the-mill ponytail. It’s a great look with little effort and a lot of versatility!