Michelle Obama has officially begun her 12-stop tour to promote her new book, 'Becoming,' by sitting for a conversation with Oprah Winfrey at the home arena of the Chicago Bulls. The crowd of 14,000 roared as the former first lady stepped onto a stage late Tuesday at the sold-out United Center.

Attendees will hear firsthand Mrs. Obama’s intimate reflections on the experiences and events, both public and private, that have shaped her, from her childhood on the South Side of Chicago to her years as an executive balancing the demands of motherhood and work, to her years spent at the most famous address in the world.