It looks like Miley Cyrus is shedding more than just her wholesome Hannah Montana image — now the starlet is shedding her long hair as well. After spending a marathon nine hours at Gemini 14 salon in Manhattan last week, the 17-year-old star was snapped Sunday at the 21st annual MuchMusic Video Awards in Toronto with a whole new look. Gone were her youthful waist-length extensions, replaced by a mature to-the-collarbone length, as well as fresh highlights and lowlights. “She was going for a more mature look,” revealed Gemini 14 colorist Vickie Vidov, who has worked with Miley for the last year. “Her hair is shorter and the color was amped up—she has new brown and blonde shades mixed in,” she told PEOPLE. Gemini 14 hair extensions expert Kristina Barricelli, who spoke to PEOPLE at The Salon’s benefit Thursday for Reach Out and Read – a charity that supplies books to kids in need, added: “Miley is really maturing. She’s becoming more of a woman. She wants people to respect the artistry. She doesn’t want to hear negative talk. And she’s in the driver seat with her hair.”