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Oprah has landed Oksana.

A source tells that Mel Gibson's ex, Russian singer Oksana Grigorieva, will sit down with the daytime diva to talk about her rocky relationship with the 54-year-old actor, with whom she has a baby daughter, Lucia.

Winfrey, 56, whose 25th season ends this year, had been battling 60 Minutes for the sought-after sit-down.

A rep for Harpo, Winfrey's production company, told Us it was not ready to make any announcement at this time.