The tradition started in 1905 when Norway got its independence, and it’s sort of a combination of celebrating the end of high school and independence day (17th of May). Basically in their sophomore year or something, very early on in high school, kids get together in groups of like 20-30 girls and 20-30 guys and start saving money to buy a bus (party bus) in their senior year. Basically each group picks a project to work on over the two years that will help them raise enough money to do it (typically about 200,000 dollars per group.)
Not everyone does it, but a lot of kids do. And basically with these busses, you create your own theme so one bus could be called just weird names like sin city or vice city, or one bus could be called champions league and umm and you renovate the bus create it and decorate it in your own theme by re decorating the whole inside, changing the seating, sometimes adding sofas in the bus, adding speakers, lights, bars, and some people put karaoke machines inside their bus, thats a new thing.
And basically then there are different competitions between busses: who has the best sound systems, exterior, interior, etc and the competitions are regional or countrywide.
I’m from east of Norway and its more of a cultural thing where I’m from, and most parts of the country if they can’t afford it do it with busses so they just do it with like minivans.
So then there’s different festivals around the country- these are called “literally translated its called country meet ups and then the name of the place” and at these FESTIVALS (which last for like 2-4 days) have performances and concerts by artists, and the busses are all set up in the same huge space and the best busses usually have a large set up around their bus with light shows and a stage and you can imagine, and they are judged not only on the bus but also the set up. I would say they put a lot of money into the busses. Basically throughout high school each person ends up spending like about 7-12 thousand dollars on the whole thing.
And the festivals happen right before you graduate and they happen from like April 20th through sometime in May but not all at the same time, sort of spread out through that time period and all over the country. And then when the busses aren’t at their specific festivals they just get driven through the cities all month and the kids party on the bus.
Every bus also has a name that goes along with it’s theme and all the people on it have headbands with the name of the bus on it and wear them to the festivals to represent their busses. And each person also orders different colored pants, these are special pants, and you can have pants that could be a one pieces or suspenders like overalls that are called “russebukse” or anything like that and they’re usually either red, blue, green, or black, most popular are red and blue. It used to be based on your major or whatever you were planning to study after high school, so IT and Media would have blue pants and general subjects would have red, and green would be if you were like doing agricultural stuff and black would be for those who were doing labor subjects (plumber).
I would say that graduating high school is a really special part of a teenagers life even more so than in other places because we have this crazy tradition that is also mixed with our independence day. People that celebrate this holiday
For more information on this celebration see video below or article Norwegian Russ- Silly Season is Here, Life in Norway by David Nikel. https://www.youtube.com/watch?v=0lSeznt_3Ng
The informant, a fellow peer, told me this story on a long bus ride we were on together recently. While the folklore itself is engaging and definitely meaningful to anyone who has had a high school graduation celebration, the most entertaining part of the story was just how excited the informant was as he was telling me about it. He really did seem prideful about this piece of folklore that is so specific to his country and its culture and traditions.