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The talk show host has been coyly alluding to an Oprah meetup on Michigan Avenue that'll take place Friday at noon -- and the public's invited.
This morning, Ellen tweeted to her 3.6 million followers: "Chicago: It's Time! Oprah & I are meeting on Michigan Ave. for a little girl time. Want to join us? I would if I were you.
Ellen first alluded to the meetup last night:
"Windy City! Prepare to have you the wind knocked outta you. Me & You & Oprah Tomorrow near Michigan Ave."
That was followed 45 minutes later with:
"Hey Chi-Town: Oprah and I are meeting tomorrow on Michigan Ave. Want to join us? I would if I were you."
A spokesman for the show didn't elaborate.
"That's all I can tell you," said Michael Lever, the program's Director of Affiliate Relations.
Ellen will appear on the December cover of Oprah's O Magazine.