Everything finally comes to an end on May 17, a national holiday celebrating the signing of the Norwegian constitution.
The caps have been around since 1905, when they were used in graduation ceremonies to represent students' acceptances into universities.
Source: Norwegian American
The "knots" that students earn through the dares are trinkets that are tied to the russ cap, or russeknuter. For example, you'd get a tampon to tie to the cap if you chug a beer with two tampons in your mouth.
After criticism that russ was getting too wild, some new dares were invented to encourage teens to make good choices, such as getting tested for STDs or giving food to a homeless person.
While not raging at festivals or on buses, a key part of keeping the month-long party going is dares that students complete in order to win "knots."
The Associated Press called the event "Coachella transported from the desert to the snaking fjords by the icy North Sea."
One of the biggest music festivals is held at the theme park Kongeparken, which is transformed into a three-day concert venue.
Many of the month's parties take place in and around the buses, as hired drivers shuttle teens to various festivals.
The most elaborate are rigged with speakers, lighting, and even mini dance floors, which can cost up to $350,000.
Russebukse are for sale on the official russ website, but many people choose to personalize their overalls.
