WQKL (107.1 FM), known on the air as ann arbor's 107one, is a commercial radio station in Ann Arbor, Michigan. WQKL is owned by Cumulus Media, airing an adult album alternative/alternative rock radio format. WQKL has its studios at the south area of Ann Arbor near Briarwood Mall, and broadcasts its signal from a 3,000 watt transmitter atop Tower Plaza in the city's downtown.

Despite its low power, it can be heard in many of the western Detroit suburbs as a result of its transmitter being 289 feet tall and located on the roof of Ann Arbor's tallest building. WSAQ in Port Huron and WTLZ in Saginaw both occupy the same frequency to the east and north respectively, and interference often occurs in northeast areas.

WPAG has had two lives on the FM dial. The Federal Communications Commission originally authorized WPAG-FM to operate at 98.7 FM in 1947. But with few people owning FM radios in those days, management gave up the license in 1953. (In 1961, WBFG in Detroit took over the 98.7 frequency in southeast Michigan.) On February 14, 1967, WPAG was given FCC permission to resurrect its FM station at the current 107.1 frequency, but it was not until 1969 that the station finally went to air.

As with the original WPAG-FM, the new station originally simulcast its middle-of-the-road sister station, AM 1050 WPAG (now sports-talk WTKA). By the end of the 1960s, though, the FM outlet began to air separate programming (mostly folk and rock music) during the evening hours, while keeping the AM simulcast during the day. This was changed in 1972 to an eclectic Americana music format including bluegrass, folk, and old Western music. By the mid-1970s, WPAG-FM was also playing beautiful music on weekends.

By 1980, the population of Ann Arbor had topped 100,000, and due to FCC rules, WPAG-FM would only be able to simulcast a small portion of the AM programming. The first decision was to convert the eclectic Americana country shows on WPAG-FM into a full-time format, but after a few months that was ditched in favor of automated Top 40. But this format also failed to catch on, and by the summer of 1982, WPAG-FM had reverted to a full-time easy listening/beautiful music sound. Through all these changes, the station had few listeners.

In 1987, WPAG-FM was acquired by Domino's Pizza mogul Tom Monaghan. While WPAG-AM changed its call letters to WPZA (meaning "pizza," as in "Domino's"), WPAG-FM retained its call letters, although its beautiful music format was updated to include new age music. In 1989, "Easy 107" WPAG-FM changed its call letters to WAMX and became Mix 107 FM, Ann Arbor's Best Mix, playing a locally programmed mix of smooth jazz, new age music, and soft pop and soul vocals. WPAG's calls were changed to "WPZA" Three years later, the station was acquired by MW Blue Partnership, and the call sign and format changed once again, to WQKL as Kool 107, Ann Arbor's Official Oldies Station. One of Kool 107's most memorable on-air liners declared, "Kool 107 plays great oldies because today's music... sucks!" Local radio icon Lucy Ann Lance hosted Kool 107's morning show. Former KOOL 107 PD Dave Anthony and MD Greg Stucki resurfaced in York, Pennsylvania oldies station 96.1 WSOX in 1998. Anthony left the station in 2007 to go to Pittsburgh as Program Director of the Froggy country network.

In the fall of 1998, Kool 107 dropped virtually all of the pre-1965 music on its playlist and began to supplement the oldies format with hits from 1975 to 1990, from artists like Hall & Oates, Madonna, Michael Jackson, Huey Lewis and the News, Toto, Sade, and The Pointer Sisters. The new music mix was tagged "Adult Contemporary Gold," although the station retained the "Kool 107" moniker. By 1999 Cumulus Media owned the station, and took a further step toward evolving the format to AC by adding Delilah's syndicated love songs show for the evening hours.

Clear Channel Communications became the owner of WQKL in 2000. Clear Channel slowly evolved WQKL's format closer to AC over the next several years, and by 2003 the station was playing some current AC chart hits despite remaining primarily oldies-based. Yet the station continued to flounder in the local ratings, with its Arbitron showings ranging from mediocre to awful, and Kool 107 was regularly defeated in the Ann Arbor market by its own Detroit-based Clear Channel AC sister station, 100.3 WNIC. Kool 107 also lost Lucy Ann Lance around this time; she eventually surfaced doing the morning show at talk-formatted competitor AM 1600 WAAM and remained there until she was laid off at the end of 2007 due to budget cuts. She now hosts a late-morning show at WQKL's sister station, AM 1290 WLBY.