Before K-pop became a full-blown lifestyle in the States, J-rock was the import of choice among anime-convention junkies and teenagers rebelling against American pop-music cliches. Tokyo’s hyper-stylish One OK Rock first blew up globally in the mid-2000s, but their scientifically perfected spiky hair and motivational power-rock ballads featuring a hybrid of English and Japanese lyrics bestowed them with surprising staying power.
Thursday marked the first night of the resurrected La Semana Alegre music festival, which featured amazing performances from artists including Toadies, Girl…