CiON, a unit comprised of two vocalists and three instrumentalists, returns to Billboard Live. With a unique “brass × idol” style as their activity, and performances that combine singing, playing, and dancing, CiON’s appeal has grown steadily. CiON made their major-label debut with AVEX in April 2025 and are increasingly active across a broader field. Backed by a powerful band lineup including music supervisor Goushi Nishizaki, they weave an ensemble that’s slightly different from their usual stage for a special project [JAZZ SESCiON], now in its fifth edition, and for the first time in a tour format, they will visit two cities, Yokohama and Osaka. In a club space where the performers’ breath can be felt, enjoy a luxurious musical experience to your heart’s content.