Not just that song, but some of songs are very catchy.
I've even heard some of those have been made like that. They repeat some beat so it'll become as catchy as possible and stay your head forever.
Perhaps a some kind of collusion? Wear you foil hats, board your doors and windows and absolutely refuse to listen any kind of hit music.
"On hyviä vuosia, kauniita muistoja, mutta kuitenkaan, en saata unohtaa,
Että koskaan en ole yksin, varjo seuraa onneain.
Vaikka myrsky hetkeksi tyyntyykin, varjo seuraa onneain.
Ja pian taas uusin hönkäyksin, varjo seuraa onneain.
Hei tuu mun luo, pieneksi hetkeksi. Puhutaan, varjoni, valkoiseksi enkeliksi." Pelle Miljoona - Varjo seuraa onneain
You are not the only one, Mike. For some reason, her music seems to stick with you. It is kinda like her music videos, they are freaky enough to make you want to change the channel but at the same time, you can't look away. It is just like a car wreck. LOL.