WDAR-FM (105.5 FM), known as "105.5 The Beat", is an mainstream urban formatted radio station licensed to Darlington, South Carolina, and serving the Florence area.

For many years WDAR-FM played adult contemporary music as Sunny 105.5.

[citation needed] In a deal announced in February 1997, Root Communications Ltd. announced plans to buy eight radio stations owned by Florence-based Atlantic Broadcasting, including WDAR-FM.

On May 15, 2014, Qantum Communications announced that it would sell its 29 stations, including WDAR-FM, to Clear Channel Communications (now iHeartMedia), in a transaction connected to Clear Channel's sale of WALK AM-FM in Patchogue, New York, to Connoisseur Media via Qantum.

On August 21, 2017, WDAR-FM changed its format to mainstream urban, branded as "105.5 The Beat".