There’s nothing particularly underground about this renowned celebrity hotspot and music venue co-owned by Gavin DeGraw and brother Joey. Featuring roots, rock and country acts seven days a week, this formerly New York-only hangout has recently branched out to Nashville – 105 Broadway to be precise. They’ve already scooped up some of Nashville’s favorites – Thief, Lions For Real and Evan P. Donohue (who plays Oct. 4) have scored slots on The National Underground calendar. But the venue’s making it official with the Grand Opening party on Oct. 15. Hilary Williams, The Cold Stares and Joey DeGraw are scheduled to dole out tunes for the evening.