Next on Oprah … a miracle!

The talk show host is sparing no superlatives in hyping her show on Monday, promising to make a blockbuster personal revelation.

"I was given some news that literally shook me to my core," Winfrey, 56, says in a promotional spot. "This time, I'm the one being reunited. I was keeping a family secret for months, and on Monday you're going to hear it straight from me."

While no further details were released, there are many possibilities. Winfrey was born to unwed teens, had a baby who died, and was raised by various family members.

"I thought I'd seen it all," Winfrey continues. "But this, my friends, is the miracle of all miracles."