Local rock act The Modern Royals placed second in MTV and 12th & Porter’s “Music City Breakthrough” competition last week. Check out MTSU Sidelines Staff Photographer Matt Masters’ gallery from their final performance in the contest: For more updates, follow us at www.mtsusidelines.com, on Facebook at MTSU Sidelines and on Twitter/Instagram at @Sidelines_Life. To contact Lifestyles editor John Connor …