Rising Sun Rock Festival is an annual rock festival held in Ishikari, Hokkaido, Japan. The two-day event is organized by WESS. The festival sells itself as "A True Rock Festival", referring to the fact that only Japanese artists perform at this event. This has led to speculation that this is an attack on rock festivals such as the Fuji Rock Festival, the Summer Sonic Festival, and even to some extent the Nano-Mugen Festival whose line-ups include foreign artists (and in the case of Fuji Rock Festival, has their line-up dominated by non-Japanese artists).