코르티스, 폭우도 뚫었다..'록 인 재팬 페스티벌'서 뜨거운 무대 - starnewskorea.com

According to STARNEWS (published September 21, 2026), CORTIS performed on the main stage of ROCK IN JAPAN FESTIVAL 2026 at Soga Sports Park in Chiba on September 20, 2026 (local time), delivering about a 30‑minute set despite heavy rain. They performed songs including "REDRED," "TNT," "ACAI," and the intro "GO!" (with band-arranged versions and synchronized choreography) and were noted as the festival's only invited K‑pop act.