Christina Aguilera & Others Narrate Nature Videos in Discovery’s Hello World!

When we watch a nature show, the thing that fascinates the most is how animals survive and live in the wild in ways we’ve never seen before. Now, imagine watching an hawk catch its prey backed up by Steven Tyler’s trademark scream. Or listening to Christina Aguilera describe how a mother polar bear protects her cubs. Intrigued? That’s what you’ll see on Discovery’s new show Hello World! Instead of having a standard narrator drone on, the new show pairs nature footage with rock stars, and their unique story