Since they threw their first party at an East L.A. dive bar, Morgan Freed and T.J. Petracca, and a dedicated crew of regular attendees, built Emo Nite into a phenomenon. Top-tier emo artists, old and new, curate playlists and perform, with guest lists boasting members of blink-182, All Time Low, Dashboard Confessional, The Maine, and Good Charlotte. Scene-friendly pop culture mavericks often participate, like past attendees Post Malone, Demi Lovato, Machine Gun Kelly, and Skrillex.

It’s all too easy to forget that before the first Emo Nite in December 2014, “emo” was a joke.

Somehow on its journey from a melodic post-hardcore subgenre, built on earnest emotional expression, to a mainstream moniker assigned to anything remotely angsty, “emo” became a dirty word. Despite the positive impact ushered in by waves of bands, from the crucial “Revolution Summer” and Sunny Day Real Estate through Taking Back Sunday and My Chemical Romance, accepting “emo” as…