KRPM (107.5 FM) is a radio station broadcasting a country music format.

The station is currently owned by Radio Billings, LLC.

On October 20, 2000, KULU flipped to 1980s hits as 107.5 The River under the new callsign KZRV.

107.5 changed call letters to the current KRPM on November 10, 2006 and changed formats to Rock as Rock 107.5, which it carried until March 2010, when it flipped back to AC as Magic 107.5.

On May 28, 2018 Classy 105 was rebranded as 105.1 Star FM (operated by Radio Billings, LLC).