Question: The Legends of the Summer Stadium Tour was a co-headlining concert tour by American singer-songwriter Justin Timberlake and American rapper Jay Z, the tour supported  Jay Z's twelfth studio album, it was released for retail sale on which date, by Roc-A-Fella, Def Jam and Roc Nation?
Context: S. Carter Records was a record label formed by Jay-Z.  The label included Foxy Brown.  The label was formed after The Island Def Jam Music Group, holding a 50% stake in the Roc-A-Fella Records, bought the last 50% of the company.  They also appointed Jay-Z, the president of Def Jam Recordings, soon after Damon Dash and Kareem "Biggs" Burke were released as the co-founders of Roc-A-Fella Records.  Dash and Burke have started up Dame Dash Music Group since, which was also distributed by Island Def Jam.  In 2009, S. Carter Records dissolved and went out of business after Jay-Z created Roc Nation in 2008, which was actually a 10-year contract agreement between him and concert promotion company Live Nation.  Despite the closure, the name still bears copyright on later Jay-Z releases, albeit as "S. Carter Enterprises". Ill Na Na is the debut studio album by American rapper Foxy Brown, released on November 19, 1996 by Def Jam Recordings.  It was reissued on September 29, 1997 in the United Kingdom with an addition of the song "Big Bad Mamma".  Brown began working on the album after being discovered by the production team Trackmasters and appearing on a number of singles by other artists, such as LL Cool J, Case and Jay Z.  The immediate success of the singles led to a bidding war at the beginning of 1996, and in March, Def Jam Recordings won and signed the then 17-year-old rapper to the label.  Mostly produced by Trackmasters, "Ill Na Na" features guest appearances from Blackstreet, Havoc, Method Man, Kid Capri and Jay Z.  Lyrically, the album mainly focuses on themes of fashion, sex and mafia. The Justified and Stripped Tour (stylized as the Justified & Stripped Tour or Justified/Stripped Tour) was a co-headlining concert tour by American recording artists Justin Timberlake and Christina Aguilera.  It was launched in support of Timberlake's debut studio album, "Justified" (2002), and Aguilera's fourth studio album, "Stripped" (2002). Maxwell & Jill Scott: The Tour is a co-headlining concert tour by American recording artists Maxwell and Jill Scott.  Heavily playing in the United States, the tour supported Maxwell's fourth studio album "BLACKsummers'night".  Singer Erykah Badu joined as a featured performer on select dates.  Maxwell and Scott planned a second leg of the tour for the summer of 2010 (with Melanie Fiona as an opening act), however the leg was canceled abruptly.  It was later revealed Maxwell postponed the tour dates until 2011, without Scott joining. The 20/20 Experience World Tour was the fifth concert tour by American singer-songwriter Justin Timberlake.  It was launched in support of his third and fourth studio albums, "The 20/20 Experience" (2013) and "The 20/20 Experience – 2 of 2" (2013).  The tour began on November 6, 2013 in New York City, and concluded on January 2, 2015 in Las Vegas.  The 20/20 Experience World Tour grossed $231.6 million from 134 shows becoming the second highest-grossing tour of 2014 and one of the highest-grossing tours of the decade.  This made Timberlake the highest-grossing solo touring artist of the year.  It is also Timberlake's most successful tour to date. Magna Carta Holy Grail (alternatively written and stylized as Magna Carta... Holy Grail) is the twelfth studio album by American rapper Jay-Z.  It was made available for free digital download for Samsung customers via the Jay-Z Magna Carta app on July 4, 2013.  It was released for retail sale on July 8, 2013, by Roc-A-Fella, Def Jam and Roc Nation.  The album features guest appearances by Justin Timberlake, Nas, Rick Ross, Frank Ocean and Beyoncé.  Most of the album was produced by Timbaland and Jerome "J-Roc" Harmon, while other producers included Boi-1da, Mike Will Made It, Hit-Boy, Mike Dean, No I.D., The-Dream, Swizz Beatz, and Pharrell Williams among others.  The album was promoted through various commercials presented by Samsung and was not preceded by any retail singles. American hip hop recording artist J. Cole has released four studio albums, one live album, one compilation album, two extended plays, three mixtapes, sixteen singles (including nine as a featured artist), two promotional singles and twenty music videos. J. Cole first took up rapping in his teens, collaborating with the local Fayetteville hip hop duo Bomm Sheltuh. " The Come Up", his debut mixtape, was released on May 4, 2007 to positive reception.  Following the release of "The Come Up", J. Cole was contacted by American rapper Jay Z and subsequently signed to his record label Roc Nation.  Cole released his second mixtape "The Warm Up" on June 15, 2009.  "Lights Please", the first single from "The Warm Up", peaked at number nine on the United States "Billboard" Bubbling Under R&B/Hip-Hop Singles chart and became Cole's first entry on a national record chart.  He was later featured on "All I Want Is You", a 2010 single by American R&B singer Miguel – it peaked at number 58 on the US "Billboard" Hot 100.  J. Cole's third mixtape "Friday Night Lights" was released on November 12, 2010. The Legends of the Summer Stadium Tour was a co-headlining concert tour by American singer-songwriter Justin Timberlake and American rapper Jay Z.  The tour supported Timberlake's third studio album, "The 20/20 Experience" (2013) and Jay Z's twelfth studio album, "Magna Carta Holy Grail" (2013).  Overall, the duo performed to 622,559 fans in three countries, grossing a total of US $69.8 million ($ in 2016 dollars ).  With the 14 dates sold-out, it was the 15th highest-grossing tour of 2013. "D.O.A. (Death of Auto-Tune)" is a song written by American rapper Jay Z.  It was produced by No I.D. The song was released as a digital download on June 23, 2009, and as the first single from Jay Z's 11th studio album, "The Blueprint 3".  The song made its world premiere on the New York radio station Hot 97 on June 5.  Its lyrics address the overusage of Auto-Tune in the music industry.  The song samples "In the Space" by French composer Janko Nilović.  The bridge is inspired by Steam's "Na Na Hey Hey Kiss Him Goodbye" and interpolates lyrics from Kanye West's "Big Brother", and "You're Nobody (Till Somebody Kills You)" by The Notorious B.I.G..  The song won Jay Z his eighth Grammy Award, and his second for Best Rap Solo Performance. The Magna Carter World Tour was a concert tour by American rapper Jay Z.  It was promoted by his twelfth studio album "Magna Carta Holy Grail" (2013).  Following his headlining performance at the 2013 Wireless Festival, Jay Z and promoters Live Nation announced a European and North American headlining tour.  The venture was Jay Z's first solo headlining tour in almost four years, following 2009's Fall Tour.
Answer: July 8, 2013