TMZ has confirmed ... Oksana Grigorieva will do a sit-down with Oprah Winfrey.
Sources tell us it's a done deal. Oksana will appear on the "Oprah" show to talk about her claims against and relationship with Mel Gibson.
Us Weekly first reported the story.
Oksana to Oprah: So about Mel Gibson...
9/29/2010 1:05 PM PDT BY TMZ STAFF
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