Some creative people have entered text into Google Translate, taken the spoken output (you know, what you hear when you press the speaker icon), and turned it into a catchy song. It quickly went viral in Taiwan, and as of this writing, has close to 600k views. I first heard about it in the official Google Translate blog, in this post: http://googleblog.blogspot.com/2011/05/google-translate-remix.html
The piano part is played by Wiwi Kuan (???). Enjoy!