The Bozeman-based Irish rock group “The Ornery Jacks” have been playing in Bozeman for the past three years. Comprised of drums, guitars, bass, and a newly added accordion, “The Ornery Jacks” are Bozeman’s only Irish pub rock band. Perfect for a rowdy night of dancing in the pools, “The Ornery Jacks” are going to put on a rocking show for everyone in attendance.