Star Tracker: Demi Lovato, J. Lo, and Christina Aguilera

— Two weeks after Demi Lovato checked into rehab for “emotional and physical issues,” a source tells People that the Disney star is determined to get back on her feet. “Demi knows she needs the help and knows that she is where she needs to be right now. She recognizes that she has a difficult road ahead. Demi is committed to her treatment."

—Is J.Lo American Idol’s new Simon Cowell? Not exactly. But that doesn't mean the new Idol judge is a pushover. Idol Executive Producer Nigel Lythgoe told that J.Lo is no softie. “She’s listening to what they say and how they sound and commenting and being Jennifer Lopez. She’s seen the program and she knows what she’s doing and she is taking it seriously," he said.

—On Nov. 15, five-time Grammy award winner Christina Aguilera will receive a star on the Hollywood Walk of Fame. All we can say is: It’s about time!

Oprah Winfrey assembled and honored some of the most famous personalities in daytime TV history on The Oprah Winfrey Show today. Part-boricua journalist, Geraldo Rivera joined Ricki Lake, Phil Donahue, Sally Jessy Raphael and Montel Williams.