The sixth generation of country music continued to be influenced by other genres such as pop, rock, and R&B. Richard Marx crossed over with his Days in Avalon album, which features five country songs and several singers and musicians. Alison Krauss sang background vocals to Marx's single "Straight from My Heart." Also, Bon Jovi had a hit single, "Who Says You Can't Go Home", with Jennifer Nettles of Sugarland. Kid Rock's collaboration with Sheryl Crow, "Picture," was a major crossover hit in 2001 and began Kid Rock's transition from hard rock to a country-rock hybrid that would later produce another major crossover hit, 2008's "All Summer Long." (Crow would also cross over into country with her hit "Easy.") Darius Rucker, former frontman for the 1990s pop-rock band Hootie & the Blowfish, began a country solo career in the late 2000s, one that to date has produced three albums and several hits on both the country charts and the Billboard Hot 100. Singer-songwriter Unknown Hinson became famous for his appearance in the Charlotte television show Wild, Wild, South, after which Hinson started his own band and toured in southern states. Other rock stars who featured a country song on their albums were Don Henley and Poison.
In the 1930s and 1940s, cowboy songs, or Western music, which had been recorded since the 1920s, were popularized by films made in Hollywood. Some of the popular singing cowboys from the era were Gene Autry, the Sons of the Pioneers, and Roy Rogers. Country music and western music were frequently played together on the same radio stations, hence the term country and western music. Cowgirls contributed to the sound in various family groups. Patsy Montana opened the door for female artists with her history-making song "I Want To Be a Cowboy's Sweetheart". This would begin a movement toward opportunities for women to have successful solo careers. Bob Wills was another country musician from the Lower Great Plains who had become very popular as the leader of a "hot string band," and who also appeared in Hollywood westerns. His mix of country and jazz, which started out as dance hall music, would become known as Western swing. Cliff Bruner, Moon Mullican, Milton Brown and Adolph Hofner were other early Western swing pioneers. Spade Cooley and Tex Williams also had very popular bands and appeared in films. At its height, Western swing rivaled the popularity of big band swing music.
The Prairie provinces, due to their western cowboy and agrarian nature, are the true heartland of Canadian country music. While the Prairies never developed a traditional music culture anything like the Maritimes, the folk music of the Prairies often reflected the cultural origins of the settlers, who were a mix of Scottish, Ukrainian, German and others. For these reasons polkas and Western music were always popular in the region, and with the introduction of the radio, mainstream country music flourished. As the culture of the region is western and frontier in nature, the specific genre of country and western is more popular today in the Prairies than in any other part of the country. No other area of the country embraces all aspects of the culture, from two-step dancing, to the cowboy dress, to rodeos, to the music itself, like the Prairies do. The Atlantic Provinces, on the other hand, produce far more traditional musicians, but they are not usually specifically country in nature, usually bordering more on the folk or Celtic genres.
Emerging out of the great depression on near equal-footing to American popular music, Canadian popular music continued to enjoy considerable success at home and abroad in the preceding years. Among them Montreal's jazz virtuoso Oscar Peterson (1925–2007) who is considered to have been one of the greatest pianists of all time, releasing over 200 recordings and receiving several Grammy Awards during his lifetime. Also notable is Hank Snow (1914–1999), who signed with RCA Victor in 1936 and went on to become one of America's biggest and most innovative country music superstars of the 1940s and 1950s. Snow became a regular performer at the Grand Ole Opry on WSM in Nashville and released more than 45 LPs over his lifetime. Snow was one of the inaugural inductees to the Canadian Songwriters Hall of Fame started in 2003.
In 1925, the Canadian Performing Rights Society was formed to administer public performance and royalties for composers and lyricists. It became known as the Composers, Authors and Publishers Association of Canada (CAPAC). Toronto-born Murray Adaskin (1906–2002) was a violinist, composer, conductor and teacher at the University of Saskatchewan. From 1923 to 1936 he was an orchestral and chamber musician with the Toronto Symphony Orchestra, he was later named head of music at the University of Saskatchewan. He was a composer-in-residence at the University of Saskatchewan, the first appointment of this type in Canada.