For more details on the history of 92.7 FM from 1959 to 2004, see WLIR.

92.7 FM went on the air in 1959 with the call letters WLIR and played Broadway tunes and classical music. In the early 1970s, the format shifted to progressive rock, then to modern rock in the 1980s. In 1987, the call sign changed to WDRE-FM, and in 1996 they went back to WLIR-FM. Univision bought the station in 2004 and became a multi-cast for "Latino Mix" WCAA 105.9 FM based in Newark, New Jersey and New York City (WCAA would later start broadcasting at 96.3 FM as the result of a frequency swap with classical music station WQXR.)

On Memorial Day 2005, both stations became "La Kalle," a reggaeton-formatted station. The station at 105.9 became WCAA and 92.7 became WZAA.

A WQBU-FM car in the 2010 North Hudson Cuban Day Parade in Union City, New Jersey. In late January 2007, Univision ended the simulcast and changed the call sign to WQBU-FM.

In March 2007, the station announced that they would become the Spanish-language home of the New York Yankees. Beto Villa is the play-by-play announcer.

In 2010, the station became the Spanish language home of the New York Mets, with Juan Alicea and Max Perez Jimenez with the calls.

On November 15, 2012 WQBU-FM changed their format to Spanish Tropical, branded as "Mami 92.7".

On March 31, 2014; WQBU-FM switched to a news/talk format nationally syndicated by Univision America. This makes it the 10th station overall and the first FM station in Univision's portfolio to have the Univision America network.

Previous "Mami" ident used until 2014.