The station began broadcasting April 8, 1961, as
KJEM-FM, sister to
KJEM (800 AM), and adopted an
adult standards format. Studios were located where the Oklahoma City Federal Building (Murrah Building) once stood. It changed calls in 1972 to
KAFG and ran an automated
oldies format. KAFG's transmitter site was at 23rd and N. Classen on top of the Citizen's National Bank tower. In May 1977 it re-launched as a rock station known as "The Zoo" and adopted the callsign
KZUE. During this time it was owned by INSILCO Broadcasting which later changed its name to Clear Channel Radio, and eventually
iHeartMedia. After losing its audience to the then new
KOFM (now
Magic 104.1), it became an
AC station known as "Z-103" in 1979. The station adopted the handle "K-Joy" (The Joy of Oklahoma) and an
easy listening format in 1981 and changed its callsign to
KJYO. It has been a
Top 40 (CHR) since January 1983, but leaned towards the
Rhythmic Top 40 format in 1989–1991 when it was known as "Kontinuous Jams." Mike McCoy served as Program Director from 1989 until 2017. JJ Ryan joined KJ103 in 2017 as Program Director and is the Vice President of Programming for iHeartMedia Oklahoma City. KJYO, along with the other iHeartMedia Oklahoma City stations, simulcast audio of KFOR-TV if a Tornado Warning is issued within the Oklahoma City metro area. ==References==