List of number-one singles in Ostland by year

2018
The top single of the year was CRAZY SOLUTION by TheJoint, Diego Steen and Maaasster, a trap, hip-hop and R&B song. It spent two consecutive weeks at number one, and other 27 in the top ten. The second best-selling single was Jumpsuit by Twenty One Pilots, which broke the record for the most by-demand streams in a week for a song by a foreign act, with 6.8 million across the streaming platforms, and 5,9 million only on Spotify, and the third was Without You by Avicii and Sandro Cavazza, which originally debuted within the top 10, but gained a lot of relevance after the very known disc-jockey passed away in April 2018.

Other featured singles were D.O.W.N. by Anton Tronne (#3 Year End), Sunnsträling by R(Ones) (#4 Year End), and Elektroshock by Max Rittsem (#6 Year End)