Question: In which year did this American country music singer and songwriter, who recorded "Whistlin' Dixie" receive a nomination for Country Music Association Awards Song of the Year?

Context paragraphs:
Whistlin' Dixie: "Whistlin' Dixie" is a song co-written and recorded by American country music artist Randy Houser.  It was released in November 2009 as the lead-off single from his album "They Call Me Cadillac", which is released on September 21, 2010.  Houser wrote the song with Kim Tribble.

The Judds: The Judds were an American country music duo composed of Naomi Judd (born 1946) and her daughter Wynonna Judd (born in 1964).  The duet signed to RCA Records in 1983 and released six studio albums between then and 1991.  The Judds were one of the most successful acts in country music history, winning five Grammy Awards for Best Country Performance by a Duo or Group with Vocal, and eight Country Music Association awards.  They also had 25 singles on the country music charts between 1983 and 2000, 14 of which went to number one and six more of which made top ten on the same chart.  In 1985, the duo appeared on the PBS music program "Austin City Limits" during Season 10.  They also appeared on the PBS children's show "Square One TV" many times.

This Is Country Music (song): "This Is Country Music" is a song co-written and recorded by American country music artist Brad Paisley.  After performing it at the Country Music Association awards ceremony, Paisley released the song in December 2010.  The song is Paisley's twenty-eighth single release overall; it entered the Hot Country Songs charts dated for December 4, 2010.  It was included on his eighth studio album, of the same name, released on May 23, 2011 release via Arista Nashville.

Sonny James: James Hugh Loden (May 1, 1928February 22, 2016), known professionally as Sonny James, was an American country music singer and songwriter best known for his 1957 hit, "Young Love".  Dubbed the "Southern Gentleman" for his congenial manner, his greatest success came from ballads about the trials of love.  James had 72 country and pop charted releases from 1953 to 1983, including an unprecedented five-year streak of 16 straight Billboard #1 singles among his 26 #1 hits.  Twenty-one of his albums reached the country top ten from 1964 to 1976.  James was given a star on the Hollywood Walk of Fame in 1961 and co-hosted the first Country Music Association Awards Show in 1967.  He was inducted into the Country Music Hall of Fame in 2007.

Randy Houser: Shawn Randolph "Randy" Houser (born December 18, 1975) is an American country music singer and songwriter.  Signed to Universal South Records in 2008, he charted the single "Anything Goes".  It was a Top 20 hit on the "Billboard" country singles chart and the title track to his debut album of the same name, which also produced his first Top 5 hit, "Boots On".  In 2012, he moved to Broken Bow Records imprint Stoney Creek.  He reached Number One with "How Country Feels", the title track to his third album, and with "Runnin' Outta Moonlight" in 2013.  The follow up singles from the same album were "Goodnight Kiss", which reached number one on the Mediabase Country Chart and number two on the Country Airplay chart, and "Like a Cowboy," which reached number 3 on the Country Airplay chart in March 2015 and received a 2015 Country Music Association Awards Song of the Year nomination.

Lisa Hewitt: Lisa Hewitt is a Canadian country music singer.  Hewitt released her self-titled debut album on the independent Socan Records in 1999.  Her second album, "The Road I Chose", was released in 2004 by Royalty Records.  Its first single, "One of Those Goodbyes," reached the Top 25 on the "Radio & Records" Canadian country singles chart.  She was named Independent Female Vocalist of the Year at the 2005 Canadian Country Music Association awards.  Hewitt was featured in 2006 on the CMT series "Plucked", a documentary about six country music stars in training.  In 2009, Hewitt was signed to 306 Records.  Her third album, "Fearless", was released in March 2009.

Blue (Bill Mack song): "Blue" is a song released in 1958 by Bill Mack, an American songwriter-country artist and country radio disc jockey.  It has since been covered by several artists, in particular by country singer LeAnn Rimes, whose 1996 version became a hit.  The song won Mack the 1996 Grammy Award for Best Country Song, a 1996 Academy of Country Music Award for Song of the Year, a 1997 Country Music Association Awards nomination for Song of the Year, a 1997 Country Radio Music Awards nomination for Song of the Year, and is included on the CMT list of the top 100 country songs of all time.  Rimes' rendition won the 1996 Grammy for Best Female Country Vocal Performance.

Dann Huff: Dann Huff (born November 15, 1960) is an American musician, songwriter and record producer.  For his work as a producer in the country music genre he has won several awards including the "Musician of the Year" award in 2001, 2004, and 2016 at the Country Music Association Awards and the "Producer of the Year" award in 2006 and 2009 at the Academy of Country Music.  He is the father of American singer and songwriter Ashlyne Huff and brother of Giant and White Heart drummer David Huff.

Conway Twitty: Conway Twitty (born Harold Lloyd Jenkins; September 1, 1933 – June 5, 1993) was an American country music singer.  He also had success in the rock and roll, rock, R&B, and pop genres.  From 1971 to 1976, Twitty received a string of Country Music Association awards for duets with Loretta Lynn.  Although never a member of the Grand Ole Opry, he was inducted into the Country Music Hall of Fame and the Rockabilly Hall of Fame.

Jerry Crutchfield: Jerry Crutchfield (born August 10, 1934) is an American country and pop record producer, songwriter, and musician.  He is a former publishing and record label executive.  He recorded for RCA Victor Records with vocal group The Country Gentlemen, later known as The Escorts.  He has received multiple Country Music Association's (CMA) "Song of the Year" award nominations for his work as producer, winning the award twice as well as having been a co-producer of a CMA Album of the Year.  He has also been nominated for the Dove Award for three Gospel/Christian albums, having won the award for Traditional Gospel Record of the Year by The Hemphills.  Crutchfield has served as a member of the National Board of Trustees for the National Academy of Recording Arts and Sciences (NARAS), along with the Board of Directors of the Nashville chapter of NARAS, the Country Music Association, and the Gospel Music Association.

Supporting paragraphs: Whistlin' Dixie Randy Houser
Answer: 2015