Question: The American singer that appeared at the Glacier Gardens on April 4 and 5, 1956 and June 5 and 6, 1956 passed away in which year ?
Context: Carl Graf von Horn (February 16, 1847 – June 5, 1923) was a Bavarian Colonel General and War Minister from April 4, 1905 to February 16, 1912.  He was born in Würzburg and died in Munich.  Before he became minister, he was Lieutenant General and divisional commander in Regensburg, where the "Hornstraße" is named in honor of him. Louis Kroh Liggett (April 4, 1875 – June 5, 1946) was an American drug store magnate who founded Rexall and was later chairman of United Drug Company.  He was a member of the Republican National Committee for Massachusetts. Elvis Aaron Presley (January 8, 1935 – August 16, 1977) was an American singer, dancer and actor.  Regarded as one of the most significant cultural icons of the 20th century, he is often referred to as the "King of Rock and Roll" or simply "the King". Mindy Jostyn (June 5, 1956 in Long Island City - March 10, 2005 in Hudson, New York) was an American singer and multi-instrumentalist. Michael Joseph "Mike" Sandlock (October 17, 1915 – April 4, 2016) was a utility player in Major League Baseball who played for three different teams from 1942 to 1953.  Listed at 6 ft , 180 lb., he was a switch-hitter and threw right-handed.  From the death of Connie Marrero on April 23, 2014 until his own death on April 4, 2016, Sandlock was the oldest living former major league player.  That distinction was passed on to Eddie Carnett. Blues on Bach is an album by American jazz group the Modern Jazz Quartet recorded in 1973 and released on the Atlantic label.  The album includes five compositions based on Johann Sebastian Bach's melodies from "The Old Year Has Now Passed Away" ("Regret?") , "Sleepers Wake" ("Rise Up in the Morning"), "Jesu, Joy of Man's Desiring" ("Precious Joy"), "Klavierbüchlein für Wilhelm Friedemann Bach" (Don't Stop This Train") and "The Well-Tempered Clavier" ("Tears from the Children"). Avenged Sevenfold is the eponymous fourth studio album by American heavy metal band Avenged Sevenfold, released on October 30, 2007 by Warner Bros.  Records.  The album, originally slated for an October 16 release, was delayed by two weeks in order to provide more time to complete bonus material and production for the record, including the making of the animated music video for the song "A Little Piece of Heaven".  The album debuted at number 4 on the "Billboard" 200.  On September 23, 2008, the album was certified Gold by the RIAA.  The album has also been released on vinyl.  The band supported the album with a tour, beginning a day before the release of the album and ending in 2009.  This is their last studio album to feature the drummer The Rev for the full album, who has passed away in December 2009 during the recording of their next album "Nightmare". Adolph Freiherr von Asch zu Asch auf Oberndorff (October 30, 1839 – February 18, 1906) was a Bavarian Lieutenant General and War Minister from June 5, 1893, to April 4, 1905.  He was born and died in Munich. Glacier Gardens was an indoor arena in San Diego, California.  It opened in 1939.  In that year, the San Diego Figure Skating Club was founded with the arena as its home.  The club was incorporated in 1940.  The arena was the venue for ice shows throughout the 1940s.  It hosted the Pacific Coast Hockey League's San Diego Skyhawks from 1944 to 1950.  The arena held 5,000 people.  The Skyhawks won the Pacific Coast Hockey League Championship for the 1948-1949 season.  Glacier Gardens was located at the intersection of 8th and Harbor, just south of present day Petco Park.  By 1956, the venue was known as just "The Arena."  Elvis Presley, with his backup band, guitarist Scotty Moore, bassist Bill Black, and drummer D. J. Fontana, appeared at the arena on April 4 and 5, 1956 and June 5 and 6, 1956.  In the early 1960s, the arena was sub-leased for retail and auctions, then for manufacture of a miniature jeep, the Crofton Bug.  The Arena was torn down a few years later.  The San Diego Sports Arena, which in 2010 became the Valley View Casino Center, has served as a venue for minor league ice hockey and other indoor sports in San Diego since 1966. Aesja is a young American singer from The Woodlands, Texas (Born in Dover, Delaware).  Younger sister of hip-hop artist Lil JSean, when her other brother passed away in 2010, it motivated her to chase her dreams in the music industry.  Aesja has been singing since the age of three.  She started making videos of her singing cover songs on the Mac her parents bought for her and JSean.  At the same time, he was putting out videos on YouTube and sharing his music.
Answer: 1977