Austin's own Gary Clark, Jr. is rapidly becoming a sensation outside our city limits. So we were beyond thrilled to welcome him for an intimate backstage performance at the 2012 Austin City Limits music festival, where he performed "Ain't Messin 'Round," and "Bright Lights," both from his full-length debut, Black and Blu. Check out the performance below, and keep Mr. Clark in mind when you fill out our KGSR Broadcasts Vol. 20 tracklist crossword puzzle!