Taeyong and Haechan of SM Entertainment's global boy group NCT have been confirmed for the third lineup of the 18th Seoul Jazz Festival 2026, announced on March 13, 2026. The lineup includes various artists including FREE NATIONALS, promising a diverse musical experience. The Seoul Jazz Festival is Korea's largest jazz festival, annually attracting numerous domestic and international musicians and earning significant popularity among music fans. With NCT members' participation, the festival is expected to appeal to both K-pop and jazz enthusiasts. As representative members of NCT, Taeyong and Haechan are highly anticipated for their exceptional stage presence and musicality, with fans eagerly looking forward to their performance at the Seoul Jazz Festival.