In our world, the answer to “Should I change my hair?” is always yes. Chop it off, add extensions, dye it pink, get bangs, or go blonder than you’ve ever been before. The point is, mixing it up is fun—as you can tell by any of the celebrities in this gallery. Some of them transform their look every season, others have a new color every week. No matter the change, though, it always leaves us talking. Ahead, the biggest celebrity hair transformations that dominated the headlines over the past year.