The Gigantics is Onry Ozzborn. And who is Ozzborn? He is one half of Grayskul. And Grayskul? Grayskul are signed to the legendary Rhymesayers and are a part of Oldominion. Oldominon? Oldominion is a decade-old collective of rappers, producers, and DJs from Portland and Seattle. How does all of this relate to the Gigantics' new and brilliant CD, Die Already? The work is an ambitious synthesis of the local and national lights that are connected to the underground. Die Already is a burst of pure hiphop energy. (El Corazón, 109 Eastlake Ave E, 381-3094. 8 pm, $15 adv/$17 DOS, all ages.)