Eläkeläiset mainly play cover versions of famous pop and rock hits in a fast humppa or slow jenkka style ( both sound somewhat similar to polka music the way " Weird Al " Yankovic plays it ) with Finnish lyrics — the original songs are barely recognizable . They also publish bootleg recordings of their own concerts . Eläkeläiset are very popular among some OpenBSD developers and frequently played at their hackathons , where they claim they are " thwarting evil with humppa and math . " Eläkeläiset was one of the nominees to represent Finland in Eurovision Song Contest 2010
Eurovision Song Contest 2010
Eurovision Song Contest 2010
Eläkeläiset