Music and lyrics are good way to learn language. I'm in great gratitude to New Kids On The Block about waking up my interest towards English language. If learning Finnish through lyrics is your cup of tea, go for it - but watch out these ones, they may cause permanent injuries:
Yö - A band who thinks they are interpreting the deepest feelings of the Finns, but they are taking it all a bit too seriously. Pompous misery.
Popeda - I guess Popeda tries to be a bit of a humor band, but the only problem is that they are not funny. Although I must admit that the lively and rich visualization of the video above made me laugh. Pate Mustajärvi, the vocalist of Popeda has been recording solo, so what's out for him as well.
Sakari Kuosmanen - Whenever there's a significant ice-hockey event, Sakari Kuosmanen crawls up from somewhere to sing Finlandia. He sings and acts as if he was touching people really deep. But. "Oh say can you see" may be the one and only way to start a baseball game in the States, but at least I'm having hard times with Sakari Kuosmanen, Finlandia and sports. Well, it's a matter of taste.