WXKS-FM  WXKS-FM (107.9 FM), branded as "Kiss 108", is a commercial FM radio station licensed to serve Medford, Massachusetts and covering Greater Boston. The station is owned by iHeartMedia and broadcasts a Top 40 (CHR) format. The studios are in Medford and the transmitter site sits atop the Prudential Tower in downtown Boston. Kiss 108 is one of the United States and New England's most prominent top 40 stations, notable primarily for its annual Kiss Concert, which draws some of the best-known names in the pop music business to Mansfield's Xfinity Center concert venue each spring. Morning DJ Matt Siegel has been a fixture on the Boston airwaves since 1981, and was briefly nationally syndicated during the late 1990s. Kiss 108 was also the flagship station for Open House Party Saturday hosted by John Garabedian, broadcasting from his house in suburban Boston, but on March 10, 2007, Kiss 108 dropped Saturday edition Open House Party and began a new show called The Saturday Night Mash-Up, and later, the syndicated Saturday Night Online (now Most Requested Live) hosted by Romeo. The Sunday edition of Open House Party hosted by Kannon was broadcast shortly on Kiss 108, replacing the Saturday night show, until May 2008. Kiss 108 is the Boston affiliate for "American Top 40" and the "iHeartRadio Countdown". The station first went on the air September 1, 1960 as WHIL-FM, a simulcast of sister station WHIL (now WKOX), and broadcasting its own programming after sunset when WHIL signed-off. For much of the sixties, WHIL and WHIL-FM were country music stations, but in late 1972, both stations switched to beautiful music as WWEL and WWEL-FM ("Well"). The calls refer to Wellington Square in Medford, where the station studios were located. Despite moving the FM transmitter to the top of the Prudential Tower in 1972, WWEL-FM was not very successful as a beautiful-music format. In 1978, WWEL-FM broadcast the night games of the Boston Red Sox as their flagship station (WITS, now WMEX) delivered a poor night signal in much of Metro Boston. The stations were sold to Heftel Communications, operated by Cecil Heftel, in early 1979. Heftel changed the call letters to WXKS, adopted "Kiss 108" as an identity, and changed to a disco format on February 10, 1979 at midnight.