Few rock en español bands sound so authentically Spanish as Estopa, fronted by brothers José and David Muñoz Calvo, who have been combining rumba flamenca's driving pace with hooky rock guitars and drums since 1999. Set in bars and other corners of the urban world, their poetic and often very funny songs depict richly drawn working-class Spaniards, explore romance in all its messiness and consider the mixed blessings of everyday vices. Casually insolent and utterly charming, Estopa's "ultrarumba" is ready to rumble.