Jay L. Clendenin/ Los Angeles Times
Why we know her: Billy Ray's daughter rose to fame with her Disney series "Hannah Montana." Cyrus became one of the hottest concert tickets around, and she went 3-D long before the JoBros did. A bit of controversy entered Cyrus' world when some racy MySpace pics surfaced, and she got a little bare for Vanity Fair. Now, she's looking beyond "Hannah," with films like Nicholas Sparks' "Last Song." And yes, it features Miley singing "When I Look at You."
-- Todd Martens