Pop quiz: When does learning begin? Answer: Before we are born. Science writer Annie Murphy Paul talks through new research that shows how much we learn in the womb -- from the lilt of our native language to our soon-to-be-favorite foods.

For the last eight years, pop singer Annie Lennox has devoted the majority of her time to her SING campaign, raising awareness and money to combat HIV/AIDS. She shares the experiences that have inspired her, from working with Nelson Mandela to meeting a little African girl in a desperate situation.

Annie Soundtrack

Annie Get Your Gun - Anything You Can Do This is the 18th track from the album Annie Get Your Gun. Released: 2009 Genre: Soundtrack "MMO Group, Inc."

Annie Get Your Gun - Anything You Can Do This is the 6th track from the album Annie Get Your Gun. Released: 2009 Genre: Soundtrack "MMO Group, Inc."

Annie Get Your Gun - Finale This is the 7th track from the album Annie Get Your Gun. Released: 2009 Genre: Soundtrack "MMO Group, Inc."

Annie Get Your Gun - My Defenses Are Down This is the 30th track from the album Annie Get Your Gun. Released: 2009 Genre: Soundtrack "MMO Group, Inc."

Annie Get Your Gun - Overture This is the 20th track from the album Annie Get Your Gun. Released: 2009 Genre: Soundtrack "MMO Group, Inc."

Annie Get Your Gun - Overture This is the 1st track from the album Annie Get Your Gun. Released: 2009 Genre: Soundtrack "MMO Group, Inc."

Annie Get Your Gun - My Defenses Are Down This is the 11th track from the album Annie Get Your Gun. Released: 2009 Genre: Soundtrack "MMO Group, Inc."