Oprah Winfrey to Appear on Watch What Happens Live

Andy Cohen's welcoming a very special guest to the Watch What Happens Live clubhouse: Oprah Winfrey!

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The talk show queen will appear Thursday, Aug. 15 at 11/10c on the Bravo show, TVGuide.com has confirmed.But while Oprah is there to promote her upcoming film, Lee Daniels' The Butler, we're sure Andy will get some dirt on her off-screen life as well. Maybe Gayle King will even bartend? There's no harm in dreaming, right?