If you give a man the correct information for seven years, he may believe the incorrect information on the first day of the eighth year when it is necessary, from your point of view, that he should do so. Your first job is to build credibility and the authenticity of your propaganda, and persuade the enemy to trust you although you are his enemy.
PSYGangnam is a territory in Seoul, Korea. I describe it as noble at the daytime and going crazy at the night time. I compare ladies to the territory. So - noble at the daytime, going crazy at the night time - and the lyric says I am the right guy for the lady who is like that.
PSYAll the people in Korea are cheering me like I'm a gold medalist or something, so I have a responsibility to my country.
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