As she celebrates her birthday Tuesday, see how she went from a child star to bonafide sexpot
Despite a four-year age difference, Cyrus dated underwear model Justin Gaston for nearly a year between 2008-2009. When they broke up in June, Cyrus addressed the split on Twitter. "Tears are words the heart can't express," she wrote. "How many tears are in there? They've gotta run out soon, right?"