If you want to have a good laugh, go here and watch the video. The Green Leaves are a group of comedians who perform on a show called Silly Go Lucky! in Japan. They have also appeared on the Jimmy Kimmel Show in the US and their video has been downloaded all over the world. When I first saw this a few years ago, I could not stop laughing. Years later, it still makes me laugh. Guess you could say Yatta! is a modern classic.