Question: "Alabama Jubilee" is a song written by George L. Cobb and Jack Yellen, the most popular versions of the song were Clyde Julian Foley, a 1951 version (#3 country, #28 pop), is known professionally as Red Foley, was an American singer, musician, and radio and TV personality, who made a major contribution to the growth of country music, after which event?
Context: "Birmingham Bounce" is a 1950s song written by Hardrock Gunter.  It has been recorded numerous times, the most famous version was recorded by Red Foley who made it a hit.  The song was Red Foley's sixth number one on the Folk Record chart and spent a total of fifteen weeks on the chart.  The B-side of Foley's "Birmingham Bounce", entitled, "Choc'late Ice Cream Cone" went to number five on the folk music charts. "Peace in the Valley" is a 1937 song written by Thomas A. Dorsey, originally for Mahalia Jackson.  The song became a hit in 1951 for Red Foley and the Sunshine Boys, reaching number seven on the Country & Western Best Seller chart.  It was among the first gospel recordings to sell one million copies.  Foley's version was a 2006 entry into the Library of Congress' National Recording Registry. "Are You From Dixie ('Cause I'm from Dixie Too)" is a song written in 1915 by lyricist Jack Yellen and composer George L. Cobb, who teamed up to create several Vaudeville-era songs celebrating the American South. "Alabama Jubilee" is a song written by George L. Cobb and Jack Yellen.  The first known recording was that of comedians Collins & Harlan in 1915.  The song is considered an American popular standard.  The most popular versions of the song were Red Foley's 1951 version (#3 country, #28 pop) and the 1955 instrumental version by the Ferko String Band, which reached #13 on Cashbox, #14 on the Billboard Jukebox chart, and #20 in the UK.  A 1981 instrumental version by Roy Clark won the Grammy Award for Best Country Instrumental Performance. "Smoke On The Water" is a song written by Zeke Clements and recorded by Red Foley in 1944.  The patriotic song, which forecasts destruction for the Axis powers, particularly Japan, was Foley's first song to hit No. 1 on the Folk Records charts, spending 13 weeks at the top and a total of 24 weeks on the chart.  "Smoke on the Water" also peaked at No. 7 (In a Window Tonight)", peaked at No. 5 on the country charts. Renfro Valley Barn Dance was an American country music stage and radio show originally carried by WLW-AM in Cincinnati, Ohio on Saturday nights.  It debuted on October 9, 1937 from the Cincinnati Music Hall and moved to the Memorial Auditorium in Dayton, Ohio.  It was hosted by John Lair, Red Foley, Cotton Foley, and Whitey Ford. Clyde Julian Foley (June 17, 1910 – September 19, 1968), known professionally as Red Foley, was an American singer, musician, and radio and TV personality who made a major contribution to the growth of country music after World War II. The Battle Song of Liberty is a World War I song written by Jack Yellen and compossed by George L. Cobb.  The song was first published in 1917 by Walter Jacobs, in Boston, MA.  The sheet music cover features the Statue of Liberty amid a sea battle with planes and marching soldiers in the background.  It is dedicated to the US Army and Navy. "My Yiddishe Momme" is a song written by Jack Yellen (words and music) and Lew Pollack (music), first recorded by Willie Howard, and was made famous in Vaudeville by Belle Baker and by Sophie Tucker, and later by the Barry Sisters.  Sophie Tucker began singing "My Yiddishe Momme" in 1925, after the death of her own mother.  She later dedicated her autobiography "Some of These Days" to Yellen, "A grand song writer, and a grander friend".  Sophie Tucker made 'Mama' a top 5 U.S. hit in 1928, English on one side and Yiddish on the B-side.  Leo Fuld combined both in one track and made it a hit in the rest of the world." "Sugar-Foot Rag" (or Sugarfoot Rag) is a song written by Hank Garland and Vaughn Horton (given on Red Foley's record label as George Vaughn).  It was originally recorded by Garland and released in 1949, selling over a million records.  It was then recorded by American country music artist Red Foley in 1950.  It was also recorded by American country music artist Jerry Reed and released in November 1979 as the lead single from his album, "Texas Bound and Flyin".  The song reached a peak of number 12 on the U.S. "Billboard" Hot Country Singles chart and number 13 on the Canadian "RPM" Country Tracks chart.  Junior Brown covered Sugar Foot Rag on his 1993 album "Guit with It."
Answer: World War II