Rihanna Breaks Down Over Chris Brown on ‘Oprah’s Next Chapter’ (VIDEO)

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Oprah Winfrey continues to top herself on her interview show, Oprah’s Next Chapter, when Rihanna appears on the Sunday, August 19 episode at 9 PM on OWN.

The pop singer takes Winfrey on a tour of her home of Barbados and opens up about her childhood, dealing with fame and her controversial relationship with R&B singer Chris Brown.

What did Rihanna have to say about the very public break up?

“It was embarrassing. It was humiliating. I lost my best friend,” the 24-year-old tells Winfrey.

The stars broke up in 2009 after Brown assaulted her at a pre-Grammy Awards party. He would later plead guilty to a felony charge and receive five years of probation and six months of community service. Earlier this year, a musical collaboration fueled reports that they were dating once again.

Aside from a tour of her birthplace, the newly released trailers promise a visit to Rihanna’s childhood home and a surprise for her mother.

Watch the first look videos above.

Will you be tuning in to Oprah’s Next Chapter to hear what else Rihanna has to say? Tell us in the comments section below.