Irish folk royalty, The High Kings, bring their unique sound and popular Celtic ballads to Greeley’s Union Colony Civic Center at 7:30 p.m. Friday, March 4 at 651 10th Ave. The four vocalists–Finbarr Clancy, Darren Holden, Brian Dunphy, and Paul O’ Brien–use their well-blended vocals and thirteen different instruments to create an exciting sonic experience, …