I guess you're mostly used to Latin American popular music, so I'd like to share something different; bands from Spain which aren't that known abroad, but are pretty famous here. They are definitively played a lot in so many popular festivities, as Aste Nagusia ("Big Week") in the Basque Country.
No Hay Tregua - Barricada (about ETA): https://www.youtube.com/watch?v=2OM7xoHwEmI
Vicio - Reincidentes (full of Spanish slangs): https://www.youtube.com/watch?v=nIntgOcWsJg
Chica Yeyé - La Polla Records: https://www.youtube.com/watch?v=KE69_YndOgI
La Familia Iskariote - Kortatu: https://www.youtube.com/watch?v=oeiRte6oLs8
Kualkier Día - Piperrak: https://www.youtube.com/watch?v=oqs3R4UYZsE
Reina Mía - Eskorbuto (about heroin - it was a huge problem in the late 1980s): https://www.youtube.com/watch?v=AWOGsOviuo4
Yes! Punk and rock music. There are some other famous artists from other genres:
19 días y 500 años - Joaquín Sabina: https://www.youtube.com/watch?v=qahBeZB1g54
Una de Piratas - Joan Manuel Serrat: https://www.youtube.com/watch?v=nqLLZmXRCeE
La Mala Reputación - Paco Ibañez: https://www.youtube.com/watch?v=9j1jumnQeSw
Al Alba - Luis Eduardo Aute: https://www.youtube.com/watch?v=CvMRjkKqQOU
Feo, Fuerte y Formal - Loquillo: https://www.youtube.com/watch?v=s06ZesIakhk
