Oprah Winfrey was inches from a clean getaway, but she announced she will making a major revelation about her family on Monday's show.

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Oprah, who is in her final season on standard television, released a promo this week in which she says she "was given some news that literally shook me to my core."

"I'm the one being reunited," she said. "I was keeping a family secret for months, and on Monday you're going to hear it straight from me."

People Magazine said Saturday that some of the possibilities relate to Oprah's childhood, which included unwed parents, a teenage pregnancy and being raised by assorted family members.