First Lady Michelle Obama returns to the Oz stage to talk about aging gracefully, handling criticism and continuing her fight for America's kids. Plus, Secretary of Education Arne Duncan joins her to reveal a new plan to get kids moving.

View Part 2 of Get Moving With First Lady Michelle Obama.


View Part 3 of Get Moving With First Lady Michelle Obama.

View Part 4 of Get Moving With First Lady Michelle Obama.

Read the top 6 quotable moments from Dr. Oz's interview with the First Lady.

After years of trying to get pregnant, doctors told Kelsi Pierce it would be near impossible for her to conceive a child. However, Kelsi got the surprise of her life when her mom volunteered to be her surrogate — and she found out she, too, was pregnant!