On this evidence, Panamanian-born, Bay Area-based rap slash reggaeton crew Los Rakas have the freshest sound around. Word is they've got a serious live show too, and you can catch them alongside SH alumni The Jealous Guys, legendary Mob Figaz The Jacka and Husalah, plus Zion I, the Honor Roll Crew and DJ Amen at the Hella Fresh Fest this Friday. Enjoy.