Purchase CMT on Tour tickets for $20 today See Trace Adkins, Billy Currington and Jason Aldean live at the Ralph for only $20. For one day only, CMT on Tour will be offering tickets for just $20 to the Saturday, Dec. 2, show at Ralph Engelstad Arena. Tickets for this one-time-only promotion will be available from 10 a.m. to 10 p.m. Tuesday, Nov. 21. Tickets may be purchased online at www.ticketmaster.com, all Ticketmaster locations, by telephone at 701-772-5151, or at the Ralph Engelstad Arena Box Office during regular business hours from 10 a.m. to 6 p.m. -- Sommer Lockhart, Marketing Manager, Ralph Engelstad Arena, sommerl@theralph.com, 70833