[5] It was the second commercial Nashville station to be assigned to 103.3 MHz, preceded by the original WSM-FM, which occupied this frequency from 1947 until it went off the air in 1951.

In January 1970, WKDA-FM began playing freeform progressive rock, aimed especially at Nashville's large college student population.

In February 1997, the format was changed again to adult album alternative,[7] which led to a precipitous fall in ratings from third in the market to 13th.

After nearly 30 years of programming some form of rock, WKDF reformatted to country music on April 1, 1999, a move that shocked many longtime Middle Tennessee listeners.

[8] It jumped into a three-way race for Nashville FM country listeners with established stations 95.5 WSM-FM and 97.9 WSIX-FM.

[10][11] On February 3, 2014, WKDF, along with nine other Cumulus-owned country music stations, changed to the "Nash FM" branding that had been employed previously only by New York City outlet WNSH.

[14] On Monday, October 18, 2021, WKDF became the new home station for the nationally syndicated Big D & Bubba Morning Show.

[15] WSIX-FM now airs another nationally syndicated morning program based in Nashville, The Bobby Bones Show.