Amid strobe lights, stacks of amplifiers and a screaming audience, some of Columbia’s musical talent took the stage at the Metro, 3730 N. Clark St., on April 27 for the annual Biggest Mouth competition, organized by the Student Programming Board. Thirteen bands and performers appeared, all vying for a cash prize and other rewards.Three judges declared Carbon Tigers, a five-piece indie rock outfit, the winner. Along with the $5,000...