|City of license||Tulsa, Oklahoma|
|Broadcast area||Tulsa, Oklahoma|
|Slogan||"Tulsa's Classic Rock"|
|First air date||November 1, 1966 (as KORU)|
|Callsign meaning||K J StaR (previous branding)|
|Former callsigns||KORU (1966-1973)
|Owner||Cox Media Group|
|Sister stations||KWEN, KRMG, KRMG-FM, KRAV-FM, KOKI-TV, KMYT-TV|
On Air 
Mornings: Billy Madison Show (Billy, Derek, Nard and Chubbs)
Middays: Jeanne Nass
Afternoons: Mac Mullings
Nights: Bobby Butler
Also features Tulsa Radio Vet: "Wavy Davy" Michaels and Jill Munroe
Weather provided by co-owned station Fox23
The station signed on the air in 1966 as religious KORU, owned by famed Tulsa-based televangelist Oral Roberts. The studios were located in the iconic prayer tower on the ORU campus. In the mid-1970s the station aired an Urban Contemporary (or Soul) format as KKUL "K-Cool". In 1977 KKUL was sold to William H. "Bill" Payne, and changed to Top 40 as KTFX "The Superfox 103".
In November 1979 KTFX changed to a country format as "The Country Fox" which lasted until 1995. It was the first station to air a full-time country music format on FM in the Tulsa market.
In 1995, KTFX was sold to Cox Radio, the format changed to a classic hits format as KJSR "Star 103.3", airing classic rock music. The KTFX calls and country format moved to 102.3 (now News/Talk KRMG-FM) in 1995.
On October 9, 2012 at 12 midnight KJSR rebranded as "Rock 103". Format remains Classic Rock.
Rock 103.3 also simulcasts on Cox Communications digital cable channel 961 in Tulsa. The station is owned by Cox Media Group.
- KJSR official website
- Query the FCC's FM station database for KJSR
- Radio-Locator information on KJSR
- Query Arbitron's FM station database for KJSR
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