STS9 kicked off its three-night run at Denver, CO’s The Fillmore last night. The band opened its set with a first time cover of the Grateful Dead’s “Shakedown Street.” The group also introduced a new song, a remix of “Don’t Stop The Rock,” at the end of its first set. STS9 returned to the “Shakedown Street” theme at the end of its extended encore. The ensemble will return to The Fillmore tonight.