 The hall functioned as a ballroom in the 1930s and began to host rock acts in the late 1960s.In the years before its sale to CTV, the building housed live music clubs known as The Concert Hall, and earlier, in the late 1960s, The Rock Pile, a sitting-on-the-floor style concert venue that featured not only showcases for top local talent but also appearances by major international recording stars, including Toronto's first Led Zeppelin concert on February 2, 1969, during the band's inaugural North American Tour.Although the location remained historically significant and was added to the City of Toronto Heritage Property Inventory in 1974, the building has changed hands a number of times.