ACM Augmentation: Former Warner Music Group Sr. Accountant Christina Bartko has joined ACM as VP/Accounting & Finance. Also at ACM, Dir./Industry Relations & Awards Haley Montgomery has been promoted to Head/Artist Relations & Awards; Dir./Brand Marketing & Partnerships Steve Mekler has been elevated to Sr. Dir./Creative & Marketing; and Mgr./Events Jennifer Davis has been upped to Dir./Live Events & Production. Former ACM intern Karson Leighton was hired as Executive Assistant to the CEO, CBO and Operations. Reach Bartko here, Montgomery here, Mekler here, Davis here and Leighton here.