Trade hosted a luncheon in the hotel's banquet hall for E.W. Beatty and the board of directors of the Canadian Pacific Railway. After the luncheon, the Governor-General registered as the first guest of the hotel. During the afternoon, guides showed guests around the hotel. The day finished off with an opening ball at 9 PM (with over 2300 people attending ). Several politicians and other notable people from the US and Canada attended the opening of the hotel. The opening of the hotel was front-page news in the Montreal Gazette on 12 June 1929. The hotel had 19,800 square feet of Canadian linoleum flooring upon opening. From 1930 to 1935, a radio station operated from the hotel. Its call letters were CPRY (for "Canadian Pacific Royal York"). Broadcasting from the Imperial Room, CPRY programs were heard across the country. On 7 September 1949, the lobby of the hotel was converted into a temporary field hospital following a fire on the cruise ship SS Noronic. Docked in the Toronto harbour, the disaster on the Noronic killed 118 people. From the 1940s to the 1990s, the hotel operated a nightclub known as the Imperial Room. It attracted top musicians and performers to the hotel from the 1940s to the 1990s, including Anne Murray, Buddy Rich, Count Basie, Doug Henning, Duke Ellington, Eartha Kitt, Ella Fitzgerald, Louis Armstrong, Marlene Dietrich, Pearl Bailey, Peggy Lee, Rich Little, Tina Turner, Tony Bennett, and Woody Herman. The Imperial Room was also where Jim Carrey made his comedic stage debut. The nightclub was later converted to an event space. The Royal York became a centre of political controversy during the 1955 Toronto municipal election, when it was revealed that the incumbent mayor, Allan A. Lamport, had spent taxpayers' money maintaining a private suite at the hotel for private meetings and cocktail parties. Work to enlarge the hotel with a new east wing commenced in 1957 and was completed in 1959. The hotel underwent an extensive renovation program in 1972 and 1973 to modernize its image. Called the Royal York Revelation, the program was overseen by the architects Webb Zerafa Menkes Housden (who also designed the Royal Bank plaza next to the hotel). The renovation cut a hole in the main-floor lobby for a spiral staircase, covered the marble pillars in the lobby with wood panelling, hung modern wall lamps and a chandelier and replaced rugs with carpet.