Confederation Centre of the Arts. Following World War II a growth phase for Canadian bands was experienced, this time among school bands. Rapid advances in the inclusion of instrumental music study in formal school curricula brought about fundamental changes to the philosophy of the band movement and the type of repertoire available. The CHUM Chart debuted on May 27, 1957, under the name CHUM's Weekly Hit Parade, was in response to the fast-growing diversity of music that needed to be subdivided and categorized. The CHUM charts were the longest-running Top 40 chart in Canada ending in 1986. 1958 saw its first Canadian rock and roll teen idol Paul Anka, who went to New York City where he auditioned for ABC with the song "Diana". This song brought Anka instant stardom as it reached number one on the US Billboard charts. "Diana" has gone on to be one of the best selling 45s in music history. US-born rockabilly pioneer Ronnie Hawkins moved to Canada in 1958, where he became a key player in the Canadian blues and rock scene. The 4th of October was declared "Ronnie Hawkins Day" by the city of Toronto when Hawkins was inducted into Canada's Walk of Fame. He was also inducted into the Canadian Music Industry Hall of Fame and his pioneering contribution to rockabilly has been recognized with induction into the Rockabilly Hall of Fame. 1960–1999 Canadian artists and Canadian ensembles were generally forced to turn toward the United States to establish healthy long lasting careers during the 1960s. Canada would produce some of the world's most influential singer-songwriters during this time. Among the most notable is Neil Young who has been inducted into the Canadian Music Hall of Fame, Canada's Walk of Fame and the Rock and Roll Hall of Fame twice. Leonard Cohen has been inducted into both the Canadian Music Hall of Fame and the Canadian Songwriters Hall of Fame and is also a Companion of the Order of Canada. Folk legend Joni Mitchell is an Alberta native, and has been inducted into both the Canadian Music Hall of Fame and the Rock and Roll Hall of Fame. Walt Grealis of Toronto started in the music business with Apex Records in 1960, the Ontario distributor for Compo Company. He later joined London Records, where he worked until February 1964, when he then established RPM weekly trade magazine. From the first issue of