The night featured tracks from the new album among older hits.

Similarly, their performance of “Fire” featured even more pyro. They flexed their choreography skills on the “Mic Drop” remix (but didn’t drop their mics at the end.) And they kept moving in the round for “Run,” so that all of the 40,000 people gathered for the first night could see one of them at a time.

Equally as massive for the group was their return concert, BTS THE COMEBACK LIVE: ARIRANG, which livestreamed on March 21. The huge show had a jaw-dropping amount of people watching it, with Netflix reporting 18.4 million viewers tuned in.

Road Work is an occasional feature where we look at how headline acts put the pieces of the puzzle together, bridging each career move to their upcoming tour. Today, we’re zeroing in on BTS and how the solo efforts of each band member has led to BTS WORLD TOUR ‘ARIRANG.’

Last week, a No. 1 debut for BTS's Arirang seemed as inevitable as the tides: The K-pop boy band didn't have much competition beyond country star Luke Combs (whose The Way I Am debuted at No. 2), and the group had already banked six No. 1 albums in its career. So it came as no surprise when Arirang became its seventh.

BTS broke records with Arirang while bypassing traditional media. Here is what their strategy reveals about power in today’s music industry.

"This is illegal," RM told host Sean Evans. "It should be prohibited by the law."

It was 21 March and, after a long break, J-Hope, RM, Suga, Jin, Jimin, V and Jungkook had taken to the stage again - silhouettes against an arch of LED screens framing the historic gate to the royal palace in Seoul, as screaming crowds stretched for blocks.