我想要Y.M.C.A呢首歌

You may try this Russian site:
http://rin.ru/index_e.html

After registered, you may download one song each day after logged in. They will say ' Your balance was successfully filled for download of one composition ', then click ' mp3 ' then they will lead you to another mp3 site, after log in again you can type key words to find song.

Because you have to log in everyday to gain a credit for exchange a free one song download per day, so it may not illegal.

This site is definitely has Y.M.C.A. song.

Y.M.C.A. by Village People
可到下面網址免費試聽，或購買，售價美元0.99
http://www.apple.com/itunes/store/
試聽要下載及安裝其免費軟件 iTunes 7