What's Trending: The world's population, a different kind of nativity scene and the treadmill dance

In today's What's Trending segment Howard explains how fast the world's population is increasing. Lacy introduces us to a young girl who made the most of her role as a Christmas angel. And Guy shows us what you can do with 4 treadmills and way too much time.

What's Trending: The world's population, a different kind of nativity scene and the treadmill dance