Miley Cyrus isn't a little kid anymore -- and she's determined to prove it! In October she released a controversial music video for "Who Owns My Heart," which shows her rolling around in bed and partying at a night club. The next month the then-17-year-old was snapped holding a beer at a club in Spain. And to top it all off, a scandalous video of the teen queen smoking out of a bong was released in December, just days after her 18th birthday. Miley may think this naughty behavior is "pretty cool," but we're guessing her parents disagree!