Ever since HBO started airing the "Daily Show" alum's new weekly talk show, John Oliver's "Last Week Tonight" has grown viral in the web and outside it, as the host will often tackle important subjects (such as Dr. Oz's wrongful advice) in an absolutely hilarious manner, making them "sexy" and easy to explain for anyone interested in knowing.

In his last show, Oliver talked about the fashion industry's biggest secret: when clothes' prices are as low as they are right now, those working in the industry get paid even less, and cheap labor in impoverished countries will often also lead to child labor.

Watch Oliver's keen explanation below.