Riding high from her recent MTV Movie Awards win for Best Song from a Movie, Miley Cyrus has announced an intensive fall outing--the first to not include her Disney alter ego Hannah Montana-- that will hit 43 cities nationwide.

The teen sensation will begin the run Sept. 14 in Portland, OR, stopping by arenas across the US into early December. The performer, who Time magazine deemed one of 2008's 100 most influential people in the world, received an MTV Award Sunday for her single "The Climb," which is featured in "Hannah Montana: The Movie."