Drew & Ellie Holcomb: Rain or Shine Tour brings the husband-and-wife duo to the Tennessee Theatre in Knoxville for a night of roots-rich harmonies and heartfelt storytelling. Their first-ever duo album, Memory Bank, became the longest-charting release at Americana radio, and this show digs into that warm, honest sound. The historic theatre is a gorgeous old-school music hall, so the room feels intimate even with a full crowd.