Country music star Jake Owen will headline the American Cancer Society 25th Anniversary Northern Colorado Cattle Barons Ball at the Budweiser Events Center, Saturday, Sept. 9. This year's theme is Barefoot Blue Jean Night. The Cattle Barons Ball starts as a private gala held on the floor of the arena from 5:30 p.m. to 8:30 p.m. Doors open to the public for the Jake Owen concert starting at 8 p.m.