Question: Which artist did Neil Young cover, in his thirty-fourth studio album, that has been referred to as Canada's greatest songwriter? 
Context: Gordon Meredith Lightfoot Jr. {'1': ", '2': ", '3': ", '4': "} (born November 17, 1938) is a Canadian singer-songwriter who achieved international success in folk, folk-rock, and country music, and has been credited for helping define the folk-pop sound of the 1960s and 1970s.  He has been referred to as Canada's greatest songwriter and internationally as a folk-rock legend. Kickback is a collection of rare and unreleased material from the funk group The Meters.  The album includes a nine-minute cover of Neil Young's "Down by the River".  The band had released another Neil Young cover on the "Cabbage Alley" album. If I Should Fall to the Field is the second solo album from Steve Von Till of Neurosis.  The musical style is quite different from that of Von Till's primary band.  It is composed of acoustic based, folkish songs.  While mostly original numbers, the album features some traditional songs as well as a Neil Young cover.  The album's final track is a 1961 home recording of Steve's grandfather, Louis Von Till, reciting a poem, with instrumentation added by Steve and crew. There Is No Beginning to the Story is an EP by Bright Eyes.  The songs on it are fairly varied, with "From a Balance Beam" and "Loose Leaves" having more electronic qualities, while "Messenger Bird's Song" and "We Are Free Men" are more rooted in acoustic.  The 12" vinyl edition includes 2 extra songs: "Amy in the White Coat," a harrowing song about a father's sexual abuse of his daughter and "Out on the Weekend," a Neil Young cover. Partners is the thirty-fourth studio album by American singer and songwriter Barbra Streisand, released on September 16, 2014 by Columbia Records.  The album features Streisand singing duets with an all-male lineup including Stevie Wonder, Michael Bublé, Billy Joel, John Legend, John Mayer, Andrea Bocelli, Lionel Richie, and Elvis Presley from an earlier recording.  The collection also features Streisand's first studio-recorded duet with her now 47-year-old son, Jason Gould.  The album release was promoted on "The Tonight Show", where Streisand was the evening's sole guest and sang a medley with host Jimmy Fallon. Gary Burden is an American artist specializing in the field of album covers.  He is considered as one of the pioneers of the concept of album cover art.  In the 1960s and 1970s he designed covers for many rock stars, such as Mama Cass, Crosby Stills Nash and Young, Joni Mitchell, The Doors, The Eagles and Jackson Browne.  He created album covers for Neil Young for 35 years.  His works were nominated four times for the Grammy Awards.  and in 2010, he won the 52nd Grammy Awards for Best Boxed or Special Limited Edition Packaging for the Neil Young "The Archives Vol.  1 1963–1972".  The titles of creative director, art director and designer are mutually shared amongst Gary Burden, Jenice Heo and Neil Young who collaborated throughout the design process. Together Again is an album by the American R&B vocal group the Temptations, released on Motown Records in 1987.  It is the group's thirty-fourth studio album, and the first released under the Motown imprint.  All of Motown Records' previous Temptations releases were made on the Gordy label, which was discontinued and whose artist roster and back catalog was consolidated into the main Motown label in 1987. A Letter Home is the thirty-fourth studio album by Canadian musician Neil Young.  It was released on April 19, 2014 on Record Store Day by Third Man Records.  The entire album, which consists of covers of classic songs by artists Bruce Springsteen, Bob Dylan, Willie Nelson, Gordon Lightfoot and others, was recorded in a refurbished 1947 Voice-o-Graph vinyl recording booth at Jack White's Third Man Records recording studio in Nashville, Tennessee.  Of this method, White said, "we were obfuscating beauty on purpose to get to a different place, a different mood."  The opening spoken-word track, and other spoken lines throughout the album, were addressed to Edna "Rassy" Young, Neil's mother who died in 1990.  A message on Young's website described the album as "an unheard collection of rediscovered songs from the past recorded on ancient electro-mechanical technology captures and unleashes the essence of something that could have been gone forever". Lotusflow3r (stylized as LOtUSFLOW3R) is a triple album set and contains the thirty-third and thirty-fourth studio albums by American recording artist Prince, Lotusflow3r and MPLSound, as well as Elixer, the debut studio album by Prince protegée Bria Valente.  It was released on March 24, 2009 by NPG Records.  The three albums were sold exclusively in the United States at Target as a 3-disc set, and in Europe from more online music stores. A Drink and a Quick Decision is the second album from British duo Grand National.  The album was first released as a digital download on 18 June 2007, then released on CD and 12" vinyl 11 September 2007 in the US, and 8 March 2008 in the UK.  The US edition of the album comes with the bonus track "Old Man," a Neil Young cover, a music video by Steven Compton for "Old Man" consisting mostly of the band recording the song, and an enhanced video of "By the Time I Get Home There Won't Be Much of a Place for Me."  Meanwhile, the UK CD, Japanese CD, and vinyl pressings of the album come with the song "Pieces Pieces," and the UK version does not include "Old Man."
Answer: Gordon Lightfoot