WKQX (101.1 FM) is a commercial radio station licensed to Chicago, Illinois, featuring an alternative rock format known as "Q101". Owned by Cumulus Media, the station serves the Chicago metropolitan area. WKQX's studios are located in the NBC Tower, while the station transmitter is located atop the John Hancock Center. In addition to a standard analog transmission, WKQX broadcasts over two HD Radio channels, and is available online. WKQX-HD2 airs a classic rock format branded as "The Loop" that was previously heard on the former WLUP (97.9 FM), now WCKL.