Twenty One Pilots have reached a milestone on the Billboard 200 album chart, as their album Blurryface has been on the survey for four years straight. The album, which was released on May 17th, 2015, has been on the chart for the entirety of its release. Blurryface has spent a total of 208 weeks on the chart, peaking at Number One in early June 2015. As of this week, it’s Number 147 on the list and has never dropped off. The LP itself has sold more than four million copies, while every single track on the album has been certified at least gold, platinum or double platinum, making Twenty One Pilots the first band in history to achieve that accomplishment. The duo are currently touring in support of their latest album, 2018’s Trench, which has already been certified gold for sales of more than half a million copies. The trek stops in Edmonton, Alberta, Canada tonight.