WZII (FM)

WZII (FM) (105.5 FM) is a commercial radio station in Birmingham, Alabama that's licensed to Hoover, Alabama. It is owned by Audacy, Inc. and carries an adult hits format using the Jack FM branding. The station's studios are located on 12th Avenue South in downtown Birmingham, and its transmitter is located on Valley View Drive atop Red Mountain in southwestern Birmingham.

Early years
WZII-FM would first launch on June 6, 1956 as WEDR-FM under the ownership of local businessman J.L. Doss. It served as a simulcast of sister station WEDR (1220 AM). During its early years, the station mostly broadcasted during the morning hours. That wasn't until 1960, when both stations changed their names to WEZB-AM and WEZB-FM, using the facilities of the former WEZB (now WENN; 1320 AM).

In 1963, the two stations would change their name to WAQY-AM-FM, adopting a Top 40 format branded as Wacky 1220. During this period, WAQY-AM-FM would gain notoriety for announcing a boycott of records from The Beatles after John Lennon made comments about how the Fab Four were more important than Jesus Christ. Despite this, the station wasn't really a major competitor to other Top 40 stations in Birmingham. In 1970, both stations would switch to a country format and the next year they would switch again to a female-oriented easy listening format.

Wixie 106
On February 21, 1972, WAQY-FM would split from its simulcast of WAQY-AM which changed its name to WBUL), retaining its female-oriented easy listening format but with a new branding "Wixie 106". The station would introduce its first mascots, Wacky Fox and Wixie Foxy, two cartoon foxes designed by Alabama Audiovisual, a local animation studio in Tuscaloosa, Alabama.

In 1978, the station would switch its format to an adult contemporary station, still target towards females. In 1987, Willis Broadcasting would buy out WAYE (the former WEDR) and WAQY. On July 5, 1990, WAQY would be sold again to Shamrock Broadcasting.

Z105.5
On August 4, 1992, WAQY would drop its female oriented adult contemporary format in favor of a more traditional adult contemporary format known as Z105.5. The first song to play on "Z105.5" was "One Sweet Day" by Mariah Carey & Boyz II Men. The station would also drop its previous mascots in favor of a new live action spokes-mascot known simply as Mr. Z, who appeared in radio and TV commercials for the station. The station would then change its call-letters to the current WZII.

Shamrock Broadcasting would be purchased by Chancellor Media in 1995, which also owned WCAH and WKRP-FM. In 1999, Chancellor Broadcasting would merge with Capstar (owner of rival adult contemporary station WMJJ) to form AMFM. In order to avoid redundancy, WZII would flip to a classic rock format on September 25, 1999. The last song to play "Z105.5" during the AC format was "You'll Be in My Heart" by Phil Collins, while the first song to play on "Z105.5" during the classic rock format was "Just What I Needed" by The Cars. AMFM would then merge with Clear Channel in 2000. However, due to ownership limits at the time, Clear Channel would sell WPRT-FM, WCAH, WKRP-FM, and WZII to Infinity Radio (later known as CBS Radio in 2005).

105.5 Jack FM
On December 2, 2006, WZII would officially switch to an adult hits format using Sparknet's Jack FM brand (which CBS Radio owned the American rights to the brand). The last song to air on "Z105.5" was "Good Riddance (Time of Your Life)" by Green Day. The first song to play on "105.5 Jack FM" is "Don't Stop Believin'" by Journey.

On February 2, 2017, CBS Radio announced it would merge with Entercom. The merger was approved on November 9, 2017, and was consummated on November 17.