ROCK IN JAPAN FESTIVAL
With the new four-member formation, the band released the single "Kanzen Kankaku Dreamer" on February 3, 2010. It reached 9th on the Weekly Oricon Chart. They released their fourth studio album titled "Niche Syndrome" on June 9, 2010. The band had their tour "This is my own judgement!" in five Zepp music halls across the nation in 6 days, starting Sendai, Osaka, Nagoya, Fukuoka and ending in a 2-day concert in Tokyo. The second part the tour took place at sixteen different venues until December 11, 2010. They held a final performance in Nippon Budokan, Tokyo on November 28, followed by the release of a concert DVD "This is My Budokan?!" on February 16, 2011. On August 6, 7 and 8, One OK Rock headlined Rock in Japan Festival and Summer Sonic Festival, followed by Rising Sun Rock Festival, Monster Bash, Treasure05X, Mad Ollie, Countdown Japan 2010/2011, and Radio Crazy.