Last night at 9pm on the dot, the lights dropped and the bass started bumping for Pretty Lights‘ set at Free Press Summer Fest in Houston. The stage was packed, the crowd filled up the entire hillside all the way to the top, it was unlike any other Pretty Lights concert I had ever seen. Derek played some crowd favorites and set a good pace with all sorts of hip-hop influenced sounds until he finally unleashed the biggest surprise at all, a guest appearance from the original UGK member, Bun B. Bun B always reps Houston hard and every concert I go to it seems that he always makes a guest-showing for a track or two. In this particular instance, Pretty Lights was banging his popular tune Finally Moving and Bun B came running out and spit a dirty freestyle. It was truly unlike any other EDM performance I have ever witnessed. You can peep the entire video below, and look for the Trill OG @ 2:17, throw your H’s up and enjoy.