Hot Hair: The Topknot is Back!

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When it comes to fancy hair, we know a few things to be true: A.) Sweeping your strands off your face equals instant glamour, and B.) Nothing's sexier than showing a little neck.

Good thing the classic topknot is back in a major way! This always-elegant style manages to do both, while also being incredibly easy to do. And did we mention that it's the perfect style to go from daytime chic to evening sleek?

From Sanaa Lathan to Zoe Kravitz, here are the celebs with the best buns in Hollywood.