After a month of partying, it's time to get serious — exams are just around the corner.
Teens celebrating russ have parties and parades of their own, celebrating the end of the month.
People celebrate the day with traditional garb and parades.
Everything finally comes to an end on May 17, a national holiday celebrating the signing of the Norwegian constitution.
next slide will load in 15 secondsSkip AdSkip AdThe partying and dares can take a toll on Norwegian teens as the month goes on.
The caps have been around since 1905, when they were used in graduation ceremonies to represent students' acceptances into universities.
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.
And, some just encourage drinking, like the dare to have 24 drinks in a single day.
next slide will load in 15 secondsSkip AdSkip AdOthers are racy, like having sex outside.
Or, finishing a Big Mac in two bites.
Many dares are simply absurd — like wearing bread on your feet all day.
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."
Roughly 13,500 teens show up at the venue, "ready to rave at all costs."
next slide will load in 15 secondsSkip AdSkip AdThe 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 average Russbuss is used by 15 to 25 students, and costs around $116,000.
The most elaborate are rigged with speakers, lighting, and even mini dance floors, which can cost up to $350,000.
next slide will load in 15 secondsSkip AdSkip AdMuch of the celebration is centered around party buses or vans.
Russebukse are for sale on the official russ website, but many people choose to personalize their overalls.
Revelers are immediately recognizable by their red and blue overalls — or russebukse — a crucial part of russ.
The russ starts in mid-April and lasts until Norwegian National Day on May 17.