KHJK (103.7 FM) is a non-commercial radio station, licensed to LaPorte, Texas and serving both Greater Houston and the Golden Triangle (Beaumont-Port Arthur-Orange).

KHJK relays EMF's nationally syndicated "Air1" radio format featuring Christian worship music.

KHJK has an effective radiated power (ERP) of 100,000 watts, the highest permitted for non-grandfathered FM stations.

[3] KHJK-FM previously operated as KVST, "K-Star Country 103.7", which was licensed to service Montgomery County, Texas, prior to being purchased by Cumulus Media in 2005.

Originally owned by Ben Amato of Conroe (who sold his chain of grocery stores around that area to finance the radio station), it signed on as KVST in Huntsville on 103.5; however, interference from KEYI (now KBPA) in Austin caused the station not to reach down to the intended audience of Conroe and a look at a move-in frequency was done.

103.7 KUST soon went dark while Cumulus moved the facility to its current location in Devers, Texas to service the Houston and Golden Triangle areas.

Prior to the KIOL move, KUST tested the new transmitting site with nonstop commercial free television themes as "TV 103".

[7] The last songs played on 103.7 FM were The Old Apartment by Barenaked Ladies, Eyes Wide Open by Gotye, Mary Jane's Last Dance by Tom Petty and the Heartbreakers, In The End by Linkin Park, Closing Time by Semisonic, and It's The End Of The World As We Know It (And I Feel Fine) by R.E.M.

[8] Between In The End and Closing Time, KHJK voiceover Mike McKay gave this goodbye message: "Houston, thank you.