Thump Records turns 35 this year. This is how the L.A. label has kept oldies alive through pop-up trucks, word-of-mouth and a music roster of up-and-coming artists.

Thump Records is ramping up a series of releases in honor of its 19th anniversary. The Walnut, Calif.-based party label, best known as an early pioneer of "old school" hits compilations ...

Owner Steve Hernandez in front of his Thump Records Truck at a pop-up concert event at La Puente Park. (Jill Connelly / For De Los) ...