FNC Entertainment idol bands CNBLUE and FT Island will be rocking out the stage of Japan’s biggest music festivals, Summer Sonic Festival.

On May 13, Summer Sonic 2013 updated its official site with artist lineup, with both FT Island and CNBLUE’s names on the list. Both groups will be playing at the Rainbow Stage in Tokyo on August 10th, and at the Flower Stage in Osaka a day later, on August 11th.

The Summer Sonic Festival is an annual two or three-day rock festival held at the same time in Osaka and Chiba. The line-up contains many Japanese rock musicians from both major and indie record companies, and also international acts.