JO1 has announced they will perform their upcoming dome concerts as a 9-member group. The April tour, titled "JO1DER SHOW 2026 'EIEN 永縁' (Eternal Bond)," represents a notable shift for the group's live performance format.

The announcement confirms JO1's dome tour plans for 2026, with the subtitle "EIEN 永縁" emphasizing themes of eternal connection and bonds. Dome concerts represent the pinnacle of Japanese concert venues, typically reserved for the most successful artists, making this tour a major milestone for the group.

JO1, formed through the survival show "Produce 101 Japan" in 2019, originally debuted as an 11-member group under LAPONE Entertainment. The group has built a strong following both domestically and internationally, with multiple chart-topping releases and sold-out concerts.

The decision to perform with 9 members suggests changes within the group's lineup, though specific details about the current member status haven't been provided. This configuration change comes as JO1 continues to establish themselves as one of Japan's premier boy groups.

The dome tour represents JO1's continued growth in the competitive J-Pop landscape, with major venue bookings demonstrating their commercial success and fan dedication. More details about the tour dates and venues are expected to be announced soon.