Everything that goes with Polkka, goes forever.
As far as I know, the phenomena started in RuNet (russian Internet). But I'm not sure.
The polkka, that is known in Russia and post-Soviet countries as "Yak-tsup-tsop", is a great example of how three frames of simple animation and a catchy tune can brainwash half of the world in no time.
The previous reviewer mentioned, that he somehow felt, that the song can be listened to again, and again, and again.... And again.
There is recorded proof that some people listened to it for 48 hours and up. See Wikipedia for more detailed information.
To sum up, I would like to state, that anything that has any reference to "Polkka"/"Yak-tsup-tsop"/"Loituma girl" and so on, must remain forever in the memory of all people alive.
TEH MOOVEE RLZ!