Pat Pochmara looked down at the ice in Little Caesars Arena on Saturday afternoon, trying to find his son. “That’s Brian,” he said, pointing at his son, who was warming up. “He’s No.

Kelsea Ballerini performs Tuesday, Feb. 4 at Detroit’s Little Caesars Arena (Photo by Nyk Allen) * Ballerini is serving as a coach on the latest season of NBC’s “The Voice,” which kicks of ...