Trace Adkins, Billy Currington & Jason Aldean to play the Ralph The CMT On Tour with Trace Adkins, Billy Currington and Jason Aldean will play the Ralph Saturday, Dec. 2, at 8 p.m. Tickets, $29.50 and $39.50, are on sale now at the Ralph Engelstad Arena Box Office, all Ticketmaster locations, by calling 701.772.5151 or online at www.ticketmaster.com. For more information about the concert check out www.theralph.com. -- Sommer Lockhart, Marketing Manager, Ralph Engelstad Arena, sommerl@theralph.com, 70833