FLOW x GRANRODEO is a Japanese collaboration project uniting FLOW and GRANRODEO, two rock acts associated with anime music and the wider anison scene. The project combines FLOW’s melodic, crossover-friendly sound with GRANRODEO’s harder edge, the rock unit associated with voice actor Kishō Taniyama and releases through Lantis.
Its catalogue includes "Howling", the OP of "Nanatsu no Taizai", and "7 -seven-", the ED of "Nanatsu no Taizai". FLOW x GRANRODEO’s songs emphasize powerful vocals, catchy hooks, and high-energy arrangements shaped for anime theme songs and live performance.