"Hangar 18" is a song by American heavy metal band Megadeth from the 1990 album "Rust in Peace".
 UFO conspiracy theories, or possibly "Hangar 18", the 1980 film based on those theories, inspired drummer Nick Menza to write the lyrics.
 Shortly thereafter, frontman Dave Mustaine composed the bulk of the music.
 The intro is a rapidly strummed version of the D minor arpeggio that Mustaine wrote for the Metallica instrumental track "The Call of Ktulu", which was the final Metallica song he was given writing credit for.
 Hangar 18 is located at Wright-Patterson Air Force Base near Dayton, Ohio, and it is speculated that an alien aircraft was brought there from Roswell in 1947.
 The song reached number #25 on the Irish Singles Chart, also reached number #26 on the UK Singles Chart.
"Come On Over" is a song co-written and recorded by Canadian country music singer Shania Twain.
 It was the ninth single to country radio and title track from her third studio album "Come On Over" (1997).
 It was written by Twain and her then-husband, Robert John "Mutt" Lange.
 "Come On Over" was originally released to North American country radio stations in September 1999.
 The song went on to win a Grammy Award for Best Country Song in 2000.
 "Come On Over" was included in the setlist of the Come On Over Tour, and in a medley during the Up!
 Tour; it was also performed at the CMAs on September 29, 1999.
 The song was later included in Twain's 2004 "Greatest Hits" album.
"Nothing Else Matters" is a song by American heavy metal band Metallica.
 It was released in 1992 as the third single from their self-titled fifth studio album, "Metallica".
 The song peaked at number 11 on the "Billboard" Mainstream Rock Tracks chart as well as top-ten positions on many European charts.
 "Nothing Else Matters" was featured as a playable track in the music video game "".
 Recognized as one of Metallica's best known and most popular songs, it has become a staple in live performances.
 The song has been covered nearly 100 times.
"Sad but True" is a song by American heavy metal band Metallica.
 It was released in February 1993 as the fifth and final single from their eponymous fifth album, "Metallica".
 The music video from the single was released in October, 1992.
"Creeping Death" is a song by the American heavy metal band Metallica, released as the lead and only commercial single from their second studio album "Ride the Lightning" (1984) ("Fade to Black" and "For Whom the Bell Tolls", from the same album, were issued as promotional singles).
 Written from the perspective of the Angel of Death, it describes the (Exodus 12:29).
 One of Metallica's most frequently performed songs, it has been played live 1,458 times (third only to "Seek & Destroy" at 1,484 and "Master of Puppets", at 1,553), and it has occasionally been used on various tours as the opening song of the band's set.
 It stands as a classic example of the band's thrash style, albeit slower than the material on their first album, "Kill 'Em All".
 The song's middle section, with its ominous chants of "Die!"
 set to a phrygian mode chord progression, is a fan participation staple during Metallica shows.
Entrance music (also known as an Entry theme or Walk-on music) is a musical piece or song that is played for athletes or celebrities when they enter the ring or the playing field.
Beatallica is a mash-up band that plays music made from combinations of songs of the Beatles and Metallica.
 A Beatallica song is typically a blend of a Beatles song and a Metallica song with a related title (e.g. "The Thing That Should Not Let It Be", combining The Beatles' "Let It Be" and Metallica's "The Thing That Should Not Be" or "And Justice for All My Loving" combining Metallica's "And Justice for All" and the Beatles' "All My Loving"), though sometimes just a Beatles song will be used as a basis with modified lyrics.
 The lyrics slip back and forth between the two songs, or occasionally neither, in lieu of original lyrics comically referencing Metallica, heavy metal music, or the heavy metal community.
 While the scansion and melody are usually Beatles-based, the music is played metal style with some Metallica riffs and solos thrown in.
 Consistent quirks made in the lyrics also criticize glam metal much in the fashion that thrash metal fans would do, as well as many references to blood.
 Their version of "I Want to Hold Your Hand" called "I Want to Choke Your Band", is an example of their criticism towards glam metal.
Master of Puppets is the third studio album by American heavy metal band Metallica.
 It was released on March 3, 1986 by Elektra Records.
 Recorded at the Sweet Silence Studios with producer Flemming Rasmussen, it was the first Metallica album released on a major record label.
 "Master of Puppets" was the band's last album to feature bassist Cliff Burton, who died in a bus accident in Sweden during the album's promotional tour.
 The album peaked at number 29 on the "Billboard" 200 and became the first thrash metal album to be certified platinum.
 It was certified 6× platinum by the Recording Industry Association of America (RIAA) in 2003 for shipping six million copies in the United States.
 The album was eventually certified 6× platinum by Music Canada and gold by the British Phonographic Industry (BPI).
"Enter Sandman" is a song by American heavy metal band Metallica.
 It was released as the first single from their eponymous fifth album, "Metallica" in 1991.
 The music was written by Kirk Hammett, James Hetfield and Lars Ulrich.
 Vocalist and rhythm guitarist Hetfield wrote the lyrics, which deal with the concept of a child's nightmares.
On the darts circuit his nickname is The Excellent Dude, which is a reference from the film "Bill & Ted's Excellent Adventure".
 He is also known for using Metallica's 'Enter Sandman' as his walk-on music, which he plays air guitar as he enters the stage.

Question: From which Metallica album does the song, used by Niels de Ruiter as walk-on music, come?
Answer: Metallica