K-pop supergroup BTS will open special pop-up stores to celebrate the release of its fifth studio album, "Arirang," the group's agency said Tuesday. The pop-ups, titled "Arirang," will open at 1 p.m. on March 20, the day of the album's release, and run until April 12 at The Heritage in Shinsegae Department Store's main branch and at HYBE's headquarters in Seoul. In collaboration with the National Museum Foundation of Korea, the band will showcase merchandise that reinterprets traditional Korean aesthetics with a modern touch in keeping with the album's theme. The products will be produced jointly with Mu:ds, the foundation's cultural goods brand, to help promote Korean culture to a global audience. Other products, such as hoodies and ball caps, will also be available. Early sales for select items will open on the Weverse Shop on Thursday, while all merchandise will become available March 20. The Mu:ds collaboration goods will also be sold at the National Museum of Korea's gift shop beginning the same date. Visitors must book in advance through the Weverse Spot reservation system. Describe