I'm sure many people are aware of the Stephen Colbert - Rain "feud", which led Colbert to make his "Singing in Korean" video last year after Rain placed before him in Time Magazine's "100 most influential people" online poll (leaving Colbert in second place):
We've since come to learn that Rain recently responded to Colbert's video, which resulted in Colbert challenging Rain to a dance-off.
Here it is:
(Another better synched clip is here.)
Somehow I doubt the references to the Japanese and Empress Myeongseong would go over well with netizens here, even though actually referencing them (even if to make use of them in trash-talking his opponent) actually shows that someone put some effort into looking them up (even if it was just on Wikipedia). It's just interesting to think of American equivalents. If someone was to describe the "most humiliating thing since the burning of Washington during the War of 1812" and mention reading a biography of Lincoln or JFK, I doubt most Americans would bat an eye. But then history tends to be the past (and long dead) for most Americans, while for many Koreans history is still present (and very much alive). The important question then becomes, "Why is history perceived so differently in each country?"