Ah Du, Ah Du & more Ah Du. He's humble, sincere to his
supporters(he has firm handshakes & look really deep into your
eyes and smile. MY GOODNESS!!), has a unique voice and a
outstanding image. He uses his feelings to sing and not faking
everything out, which is a plus point for him.
Always Ah Du. 
P/S: If you want to know more about A-Do, feel free to visit his
official website www.a-do.cjb.net.
