Media mogul Oprah Winfrey will air her highly-anticipated interview with pop star Rihanna in her home town of Barbados on OWN. Oprah herself says she was surprised at how "Rihanna really was." Check out the promo after the jump!

Watch: Oprah: How Rihanna Surprised Me

The show will air Aug. 19 on OWN. Will you be watching?