Hannah Montana's ratings are down, she's growing up, and Disney needs new paper to print its tween cash on. That's why they've already found Miley Cryus' successor in 15-year-old Texas Demi Lovato. They're going to ease Lovato onto the scene with the move Camp Rock — and then the floodgates will be unleashed. Or, as Disney Channel president Gary Marsh says, "Once we find someone, we go all in." So then will come the music album, an opening act on the Jonas Brothers tour, and endless marketing to make sure she's a brand name by the time the new school year starts. Disney execs will also be issuing a restraining order against Annie Liebowitz. And while Disney insists it's not just a chopshop for tween talent, you'd be silly to think otherwise. Lovato's rise to stardom follows the tried-and-true path of child stars: guest spots that slowly turn into solo vehicles that eventually end up as market behemoths. Oh, and Lovato has one other Miley Cyrus factor: the dad-ager. Her stepfather Eddie De La Garza quit his job at a Ford dealership to become her co-manager (joining the Jonas Bros.' father Kevin Jonas Sr. to become, along with an agent and a publicist Lovato's "team"). Before long, he'll be posing with Lovato's head in his lap. [WSJ]