The Joshua Light Show is celebrating its 50th anniversary this weekend with a two-night psychedelic audio-visual spectacular at NYU’s Skirball Center on September 8 & 9, with Boss Hog and Darkside’s Dave Harrington on Friday (9/8), and Man Forever (aka Kid Millions of Oneida) and Kaitlyn Aurelia Smith on Saturday (9/9). The JLS will be pulling out all the stops for these shows, for a groovy, turned-on, tuned-in, dropped-out phantasmagoric visual experience.

You can now get buy-one-get-one-free tickets to either night -- just use code VEGAN.