Red and white illustration of a man wearing a suit and carrying a briefcase with blue text on top and red text along the outer edge on a white background
KOOK Radio 970 came on the air on March 20, 1951, in Billings, Montana. The station underwent several call number and format changes until April 17, 1998, when the call letters were changed to KBUL "The Bull," broadcasting a country format. On September 10, 2001, the format was changed to all news. The KBUL call letters remain, but now refer to "The Bulletin," and the station featured such radio personalities as Rush Limbaugh, Glenn Beck, and Sean Hannity.