Cutting-edge ink dominates SA’s annual expo and live-music mashup, featuring onsite tattooing, celebrity appearances (like the Strip Club Choppers), tattoo contests, magic shows, local bands, and national acts. More than 100 top tattoo artists demonstrate their work and meet potential customers, while Lucky 13 sponsors nearly round-the-clock human suspension shows. Saturday is heavy on the tunes, featuring sets by Flyleaf, Cult to Follow, and the Nancy Silva Project. $15-20, Noon-10pm Fri, 10am-11pm Sat, Noon-8pm Sun, Freeman Coliseum, 3201 E. Houston, slinginginktattooexpo.com.