The K-pop group has played two surprise songs during every show's encore. 4/22/2026 K-pop boy band BTS perform onstage during comeback concert at Gwanghwamun Square on March 21, 2026 in Seoul, South Korea. Kim Hong-Ji/Getty Images Hopefully ARMY likes surprises, because BTS is bringing new ones to its fan base every night. It’s been four years since BTS’ last performances as a group, and fans have been left hungry. Now that the band has hit the road with their ARIRANG World Tour, supporting their Billboard 200 No. 1 album ARIRANG , they’re making sure that fans are fed. Since kicking off the tour April 9 at Goyang Stadium in Goyang-si, South Korea, BTS has performed surprise songs during every show’s encore. The band’s already-packed setlist features 16 songs during the main performance and seven encore tracks, two of which change nightly.…