Oprah travels to Rihanna's home island of Barbados for a rare, no-holds-barred conversation with the pop superstar about her career, the recent passing of her grandmother and the price of fame. In an emotional discussion, Rihanna reveals how she really feels about her ex-boyfriend, Chris Brown—and her relationship with him today.

Then, Rihanna takes Oprah on a drive and stops by her childhood home. Plus, Oprah helps Rihanna surprise her mother, Monica Fenty, with a big announcement.

As the world prepares for the 2012 Olympic Games in London, Oprah sits down with 10 legendary Olympians, including track-and-field stars Carl Lewis, Jackie Joyner-Kersee and Al Joyner; world-renowned gymnasts Bart Conner, Nadia Comaneci, Mary Lou Retton and Shawn Johnson; diver Greg Louganis; and world-record-breaking swimmers Janet Evans and Mark Spitz. Plus a bonus conversation with Bruce Jenner!

These athletes open up about their triumphs, their untold stories and what happens after the glory. Plus, Mary Joyner, the daughter of Al Joyner and the late Florence Griffith-Joyner, talks to Oprah about how her mother's death has impacted her life.

Then, get an in-depth look at who to watch in 2012, including Lolo Jones, Gabby Douglas, Missy "the Missile" Franklin, Michael Phelps, Carmelita Jeter and Jordyn Wieber.