INMusic festival returns to Zagreb, Croatia from June 22-24, 2026, featuring a powerful rock lineup headlined by Kings of Leon, Jack White, and Gorillaz. The festival showcases rock, garage rock revival, experimental rock, punk, and post punk revival genres with notable performances from Manic Street Preachers, The Flaming Lips, and Idles. With 10 artists representing diverse musical landscapes from the United States, United Kingdom, France, and Ireland, INMusic offers three days of cutting-edge rock music in Croatia's capital city.