WKSL

The station was originally licensed to St. Augustine, Florida as WFOY-FM on 97.7 MHz simulcasting WFOY. In 1984, Shull Broadcasting bought WFOY-AM-FM and changed the FM to Hot AC WUVU "The View 97.7." In 1992, WUVU moved to 97.9 MHz, upgrading its power to 50,000 watts. It was sold to Paxson Broadcasting, which switched WUVU to WSTF (the former call sign what is now WJRR in Orlando) with an oldies format. On February 2, 1995, it flipped to Smooth Jazz as WFSJ-FM.[4]

WFSJ switched formats to Rhythmic-leaning CHR at 3 p.m. on March 17, 2000, calling itself "97-9 KISS FM."[5] For a short time it used the call sign WGNE-FM. On July 3, 2000, the call letters changed to WFKS.

From 1994 to 2000, the WFKS call sign was used on 99.9 FM in Palatka, as CHR/Hot AC "99.9 Kiss FM." That station became country WGNE-FM in 2000 and was moved into the Jacksonville market by Renda Broadcasting in May 2005. It is now "99.9 Gator Country," competing with the current WKSL-FM's sister station, WQIK-FM.

Radio Now logo from 2011–2013

On July 1, 2011, at Noon, after playing "Just Dance" by Lady Gaga featuring Colby O'Donis, WFKS launched into a "Flashback Weekend", playing hits that were popular from the station's 10-year existence, including 1990s songs. The station began promoting "The End of Kiss" at 9 a.m. on the 5th. At that time, after playing "Bye Bye Bye" by *Nsync, WFKS relaunched as "Radio NOW 97-9", while tweaking its format to a more mainstream CHR. The first song on "Radio NOW" was "Kryptonite" by 3 Doors Down.[6][7] On July 14, WFKS changed the call letters to WNWW to go with the "Radio NOW" branding.

On November 1, 2013, after playing "We Are Young" by Fun featuring Janelle Monáe, WNWW went back to its previous branding as "97-9 KISS FM", returning with a similar "Flashback Weekend" to the one that signed off Kiss 2 years prior.[8] The station still used the WNWW call sign for nine months. The call sign was changed to WKSL on August 1, 2014, reflecting the Kiss branding.