Video explains the world's most important 6-sec drum loop:

http://www.youtube.com/watch?v=5SaFTm2bcac

(it's almost 20min but it is really worth it if you like music and copyright paradoxology or just nice stories from the past ... I will tell this story to my grandchildren for sure :-))

But if you want something lighter you can watch this:

http://www.youtube.com/watch?v=THyTnt00b5I :-)

Some may say that this woman is not very clever ... but I will have to disagree ... I don't understand why knowing the capitals of all countries makes you clever ... I think that it is more wise when you don't use the (limited) space in your mind for such useless information ... of course you could ask why then she uses her mind to memorize all existing different perfume brands? ... I don't know ... in any case her reaction to the sound of this unknown country ("Hungry") was really genious!