Lullabies have been around for centuries, with the earliest known ones dating back to 2,000 BC. But unlike today’s gentle ...

You might think a lullaby is limited to a handful of classic songs, such as "Rock-a-Bye Baby ... little one can become part ...

But what if we could learn them at age 3 in a lullaby ... kids. But they can really handle some really big topics, and they want to be talking about and exploring really big topics. (SOUNDBITE OF ...