There’s always a first for everything. That’s why three of our homegrown bands, The Explorers Club, Slow Runner, and the Luke Cunningham Band, are playing at this one-night-only performance. These groups have left lasting marks on Charleston’s eclectic rock ‘n roll scene, so be sure not to miss this one. Charleston Music Hall, 37 John St. Saturday, 7pm.  $15, $13 advance. (843)853-2252, www.charlestonmusichall.com