Does rap music help plants grow faster?

Indeed heavy metal does. If you ever watched episode 23 of Mythbusters then you would know that there were noticeable differences in plant growth - especially for the plants that listened to heavy metal. Which in this case they "listened" to death metal music (which is undoubtedly one of the heaviest forms of music on Earth) and reportedly, they grew best despite some technical problems. Just think of the rainforest, there are a lot of fauna which means more noise and this means, more plant growth. I don't know about rap music but it seems the more gritty and "disgusting" the music or speech is the more the plants seem to grow. That can't be said for the plants who listened to classical music however. It's quite possible.