Members of a cappella sensation Straight No Chaser will bring their Under the Influence tour to Memorial Auditorium, 399 McCallie Ave., on Saturday, Nov. 16. The show starts at 7:30 p.m., with Caroline Glaser, a fan favorite on Season 4 of "The Voice," as opening act. Known as an unforgettable live act, Straight No Chaser entertains with the sound of 10 unadulterated male voices blended with a rollicking sense of humor. "Under the Influence," their fourth album for Atlantic Records, includes contributions from superstars Jason Mraz, Rob Thomas, Phil Collins and Dolly Parton, among others. The YouTube video of their breakthrough hit, "The 12 Days of Christmas" has been viewed more than 16 million times. Tickets to the show are $29.50 to $42.50 plus fees. To purchase, call 423-642-TIXS or visit www.ChattanoogaOnStage.com.