What is now K279BI started as K225AW, a repeater station on 92.7 MHz and licensed to Independence, Missouri. Cumulus bought the repeater in 2009 and planned to use it as a simulcast for Classic Rock KCFX. This proved false, however. On March 15, 2010, the station moved from 92.7 to 103.7 and signed on stunting Irish music as "103.7 The Leprechaun". Three days later, at 10:37 A.M., the station was launched as "103.7 The Dam". It played mostly newer Active rock artists/bands such as Three Days Grace, Breaking Benjamin, Metallica and more, without playing a lot of classic hard rock, most likely due to sister station KCFX playing that music.
On April 30, 2012 KCFX-HD2 and K279BI changed their format to news/talk, simulcasting KCMO 710 AM.
On January 2, 2013 KCFX-HD2 and K279BI were flipped to the CBS Sports Radio network.
This is the first HD Radio station in Kansas City to broadcast on the FM band.