In November 2011, Dr. Conrad Murray was sentenced to four years for involuntary manslaughter in the death of music legend Michael Jackson. Watch as Michael's mother, Katherine, shares her thoughts on the sentence with Oprah and reveals whether it brought her closure.

Interventionist Brad Lamm talks about prescription drug addiction and the investigation of Dr. Conrad Murray, the doctor who was with Michael Jackson at the time of his death.

Did you know that La Toya Jackson, her brother Michael and Kathy Hilton (yes, that Kathy Hilton) were best friends when they were in high school?

NFL player Michael Oher inspired a best-selling book and movie. His adoptive mother, Leigh Anne Tuohy, and Quinton Aaron, the young actor who plays him, share the lessons they've learned.

Janet Jackson opens up about the death of her brother Michael, the charges against his doctor and how his children are coping. Plus, media mogul Tyler Perry.