The historic heart of South Korea's capital is bracing itself for what may well be the year's biggest event: the return of the world's most successful band, BTS.

More than 250,000 people are expected to gather at Gwanghwamun Square on Saturday for the concert, marking the K-pop stars' first performance together since October 2022.

While only about 22,000 fans will be allowed inside the venue with free tickets, the remaining will watch from giant screens outside. The concert will feature songs from their long-awaited new album, Arirang, releasing just before the event.

BTS's return is expected to be more than just a concert; it symbolizes the resurgence of a cultural powerhouse that has boosted Korean soft power globally with its catchy music and dynamic performances.

Aimed at controlling crowds, the Seoul government will enforce strict security measures, including deploying more than 7,000 police and restricting access to several nearby buildings and subway stations.

Local businesses anticipate a significant boost in sales, with hotels reporting full bookings, while some locals express concern over the extensive preparations for an event that will disrupt daily life.

As BTS enthusiasts travel from around the world to witness this moment, the Seoul Metropolitan Government insists the expected influx of revenue and tourism justifies the measures taken for this extraordinary homecoming concert.