The station was first licensed in 1965, and held the call sign WMRO-FM. Its transmitter was located atop Aurora's Leland Tower, and it had an ERP of 3,600 watts. The station broadcast a beautiful music format. WMRO-FM was owned by Vincent Cofey and Benjamin Oswalt. In 1967, Vincent Cofey purchased controlling interest in the station for $35,000.
WAUR
In 1969, the station's call sign was changed to WAUR and its ERP was increased to 31,200 watts. In 1973, it was sold to Stevens Communications for $343,000. In 1975, WAUR's transmitter was moved to the eastern fringes of Aurora, and its ERP was increased to 50,000 watts at a HAAT of 488 feet. In the late 1970s, the station aired an adult contemporary format, playing music from the 1960s and 1970s. In the 1980s, WAUR was branded "Gold Rock", playing oldies of the 1950s, 1960s, and 1970s, along with some currents. In 1986, the station was sold to Midwest Broadcasting for $4 million. The following year, WAUR and AM 1280WMRO were sold to Beasley Broadcast Group for $8.7 million. Beasley Broadcast Group had been a minority owner of Midwest Broadcasting.
WYSY-FM
In 1988, the station's call letters were changed to WYSY-FM. WYSY-FM aired an adult contemporary format and was branded "Y-108" with the slogan "Doin' It In The 'Burbs!". In December 1989, its AM sister station WMRO 1280, became WYSY, simulcasting Y-108. In September 1992, the station's transmitter was moved to Bloomingdale, Illinois. For a while in 1993, the station played hot AC days and hard rock/metal at night. In late 1993, WYSY was sold to Cox Communications for $9 million. In January 1994, the station switched to a classic hits format featuring rock, pop, R&B, and disco hits of the 1970s, with the slogan "The Greatest Hits of the '70s". The station was briefly branded "Star 107.9", but changed its branding to "Y107.9" because WZSR had registered the "Star" moniker with the state. In 1996, WYSY-FM and 105.9 WCKG were acquired by Infinity Broadcasting as part of a station swap. At the end of the year, Infinity Broadcasting was purchased by the parent company of CBS. This caused CBS/Infinity to exceed the FCC's ownership limits, requiring the sale of two stations. CBS/Infinity decided to sell WYSY-FM and WSCRAM 820. In 1997, WYSY was sold to Spanish Broadcasting System for $33 million. On April 14, 1997, the WYSY-FM dropped its 1970s format and began stunting.
WLEY-FM
In July 1997, after almost 3 months of stunting, WYSY adopted a Regional Mexican format branded "La Ley". Its call sign was changed to WLEY-FM later that month. By coincidence, WLEY's calls originated on WCFS-FM in the 1950s, standing for Leyden Township.
WLEY-HD2
On August 21, 2018, WLEY-HD2 began broadcasting 95.1 Clubsteppin, an Urban oldies format focused on Chicago stepping. The format is programmed by Tracey V. Bell. Clubsteppin is simulcast on 95.1 FM by the translators W236CF in Chicago and W236CG in Bolingbrook, which formerly aired a rock format as "The Hound". In August 2019, Tracey V. Bell's Integrated Brand Marketing Company purchased the two translators from Windy City Broadcasting for $3.5 million.
