Free Mp3?

I like to search the pop songs on the internet, and today I tried Amazon MP3 Store to download a song. But I found it is not easy to use the website because you need to sumbit a lot of personal details on that. And at last when I entered the New Zealand Address and the Amazon advised the Mp3 only can be downloaded in America...so disappointed. But on the other hand, the customers on their website could be supervised by Amazon, so it is good for keep the copyright. I normally use a Music Searching Tool Called Kuwo Music Box. It can search all the website which has the songs you want and you just need to download from the tool. I love it because it is fast and it also show if the download is legal or illegal. And when playing the songs, the lyrics are also shown on the screen. Only because it is a software in Chinese, it may not easy for other language speaker to use it.The link is http://www.kuwo.cn/