Good Website to Convert Youtube into MP3

As a Mac user, I been thinking, how to convert  Youtube into MP3 because I do not use any third party program to download illegally :p 

With this website, we can now convert Youtube into MP3 in just a second:

http://www.dirpy.com/studio/tXmLRHnoSAs

I can now get free songs from Youtube ^.*~~~  that's so great.! Happieeeeee ^.*~~~

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