【披著羊皮的狼】先聽的是譚詠麟的,一想到'狼',腦子又出現齊秦的'北方的狼'

http://www.youtube.com/watch?v=QArB96NBk4A
譚詠麟 (still like it the most, can't change by now, too late?)

刀郎
http://www.youtube.com/watch?v=RMc1S-WlMt0

http://www.youtube.com/watch?v=MFqOoGHowDg
齊秦 - 狼 - Wolf