Miley Cyrus' recent sexy music video, followed by the release of footage of her grinding with a 40-plus-year-old man, hasn't just upset her fans -- it's also worried industry big-wigs.

"Everyone in Hollywood is worried that Miley is on the path to becoming the next Lindsay Lohan," confessed a Hollywood casting agent. "It's the oldest story in showbiz -- when child star grows up and loses his or her entire fan base. For every Jodie Foster that exists, so does a Gary Coleman." More on Miley -- including what an original teen queen thinks -- after the jump!