Oprah's Flash Mob Takes Over Magnificent Mile

Photo: WireImage

You gotta give it up to Oprah Winfrey! The woman knows how to throw a party! On Thursday’s kick-off for the 24th season of The Oprah Winfrey Show, 21,000 fans packed the streets of Chicago and performed one of the biggest group dance numbers in the world as the Black Eyed Peas rocked out on stage to an ode-to-Oprah version of "I Gotta Feeling."

What can we say, Miss O...you certainly painted the town, and shut it down!

Mazel Tov!  (L'Chaim!)