Anne Hathaway claims that her personality changed after doing one thing: changing her hair color from brunette to blonde.

It’s not the first time that the actress changed her hair for a role, though. For “Princess Diaries”, she donned tight curls, while in “Les Miserables”, she even had to shave all her hair off. However, it IS the first time that the ‘princess of Genovia’ is undergoing a (pretty minor) personality change after switching up her hairstyle.

Hathaway is starring in a new thriller film, Serenity, with actor Matthew McConaughey, and the actress believes that she became “funnier” after rocking her new ‘do.

“I felt funnier!” Hathway says in an interview with W magazine. “I don’t know why, but I just felt that I could be funnier while saying less. I know that doesn’t make any sense, but it was just—it’s nice. And it also made me want to do it more in life, like, just mess around with [my hair] and not get too fixed on anything.”

So can changing your hair really change your personality? We don’t know, Anne, but we do know you’re as gorgeous and witty as always!