Miley Cyrus turns 18 in a few months, and she’s ready to leave “Hannah Montana” behind and move on to an adult career. The tween queen looks ready to give Christina Aguilera, Katy Perry and Lady Gaga some competition with her wild new video, “Can’t Be Tamed,” which shows her wearing a skimpy feathered costume as she escapes from a bird cage.  “The video isn’t about being sexy or about who can wear less clothes,” Miley explained. “It’s about explaining the song and living the lyrics… I don’t want to be in a cage. I want to be free and do what I love.” Sounds like this little girl is growing up!