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

full_context: Document 1: Alex Roy (darts player): Alex Roy (born 4 September 1974 in Watford, Hertfordshire) is a darts player who competes in Professional Darts Corporation events. He uses the nickname Ace of Herts for this matches and is with Dave Holland Management. Roy's entrance music is "Burn in My Light" by Mercy Drive, which was the former theme of professional wrestler Randy Orton. Roy even does Orton's trademark pose to the song once he steps onto the oche.
Document 2: Metallica (album): Metallica (commonly known as The Black Album) is the fifth studio album by American heavy metal band Metallica. Released on August 12, 1991 by Elektra Records, it received widespread critical acclaim and became the band's best-selling album. "Metallica" produced five singles that are considered to be among the band's best-known songs, which include "Enter Sandman", "The Unforgiven", "Nothing Else Matters", "Wherever I May Roam", and "Sad but True". "Don't Tread on Me" was also issued to rock radio shortly after the album's release, but the song did not receive a commercial single release. The album marked a change in the band's sound from the thrash metal style of the previous four albums to a slower one. Metallica promoted the album with a series of tours. In 2003, the album was ranked number 252 on "Rolling Stone"' s 500 greatest albums of all time.
Document 3: Mama Said (Metallica song): "Mama Said" is a power ballad by American heavy metal band Metallica from their sixth album "Load", with music and lyrics by James Hetfield (music credited to Hetfield/Ulrich). The lyrics represent a man or boy who is learning to find his own way in life away from his mother. The song is directly written about Hetfield's difficult relationship with his mother, who died of cancer when he was 16 years old.
Document 4: Entrance music: 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.
Document 5: Guitar showmanship: Guitar showmanship involves gimmicks, jumps, or other stunts with a guitar. Some examples of guitar showmanship would become trademarks of musicians such as Chuck Berry, Jimi Hendrix, Pete Townshend, Jimmy Page, Ritchie Blackmore, Eddie Van Halen, Stevie Ray Vaughan, Ace Frehley, and Angus Young.
Document 6: List of songs recorded by Metallica: Metallica is an American heavy metal band formed in Los Angeles, California in 1981. The band released its debut album "Kill 'Em All" in 1983, which credited songwriting between frontman James Hetfield, drummer Lars Ulrich and guitarist Dave Mustaine, who had left before the album was recorded (bassist Cliff Burton was credited for the bass solo "(Anesthesia) – Pulling Teeth"). On the 1984 follow-up "Ride the Lightning", Burton received more songwriting credits and Mustaine's replacement Kirk Hammett was also co-credited on four songs. "Master of Puppets", released in 1986, was the last album to feature Burton, who died in a bus accident later that year.
Document 7: Niels de Ruiter: 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.
Document 8: In a Metal Mood: No More Mr. Nice Guy: In a Metal Mood: No More Mr. Nice Guy is a 1997 album by Pat Boone in which Boone covers hard rock and heavy metal songs in a jazz/big band style. Boone promoted the album by appearing in leather clothing (and, at that year's American Music Awards, wearing a dog collar). He succeeded in propelling "Metal Mood" onto the "Billboard" record charts (making it Boone's first hit album in 35 years), but it did not please some of his older, longtime fans who considered the heavy metal genre in bad taste, or worse. The album has since become somewhat popular as a joke gift to metal fans (as often indicated in reviews given to it) although some serious sites have given it good reviews on its own merits. The album featured guest appearances from well-known rock musicians such as Ronnie James Dio and Ritchie Blackmore.
Document 9: James Hetfield: James Alan Hetfield (born August 3, 1963) is an American musician, singer, and songwriter known for being the co-founder, lead vocalist, rhythm guitarist, and main songwriter for the American heavy metal band Metallica. Hetfield is mainly known for his intricate rhythm playing, but occasionally performs lead guitar duties and solos, both live and in the studio. Hetfield co-founded Metallica in October 1981 after answering a classified advertisement by drummer Lars Ulrich in the Los Angeles newspaper "The Recycler". Metallica has won nine Grammy Awards and released ten studio albums, three live albums, four extended plays and 24 singles.
Document 10: Metallica discography: The following is the discography of Metallica, a Los Angeles-based metal band formed in 1981 by James Hetfield (lead vocals, rhythm guitar) and Lars Ulrich (drums). After several bassist and lead guitarist changes, the band settled on Cliff Burton and Kirk Hammett, respectively. Metallica started playing locally, releasing their first widely circulated demo, "No Life 'til Leather", in 1982. The demo caught the attention of Johny Zazula, who signed Metallica to Megaforce Records. The band released "Kill 'Em All" in 1983, and the following year they released "Ride the Lightning". After "Ride the Lightning" was released, Metallica left Megaforce and signed to Elektra Records. In March 1986, the band released its third studio album, "Master of Puppets", which was Metallica's first album to be certified gold by the Recording Industry Association of America (RIAA). While promoting the album, Burton was killed in a bus accident. Jason Newsted was hired as a replacement. The band's first release to feature the new member was "," and then followed by "...And Justice for All" in August 1988, which peaked at number six on the "Billboard" 200.
Document 11: Bill &amp; Ted's Bogus Journey: Bill & Ted's Bogus Journey is a 1991 American science fiction comedy film, and the directing debut of Pete Hewitt. It is the second film in the "Bill & Ted" franchise, and a sequel to "Bill & Ted's Excellent Adventure" (1989). Keanu Reeves, Alex Winter and George Carlin reprise their roles. The film's original working title was "Bill & Ted Go to Hell" and the film's soundtrack featured the song "Go to Hell" by Megadeth, which Dave Mustaine wrote for the film. Despite mixed reviews from film critics, like its predecessor, the film has since gained a cult following.
Document 12: Nick Morris: Nick Morris is a film maker who began writing and making amateur films at school, one of which was shown at the NFT. His professional career began in the 1980s with music videos for "The Final Countdown" by Europe, "Kyrie" by Mr. Mister and "Everytime You Go Away" by Paul Young. After making approximately 100 promos for artists such as Elton John, Celine Dion, Alison Moyet, Warrant, Terence Trent D'Arby, Stevie Wonder, Paul Carrack, Prefab Sprout, Kirsty MacColl, Go West, the Kane Gang, The Alarm, Status Quo, Toto, Natalie Cole, Nena, Scorpions and the number one charity single Ferry Aid, he moved into longer form projects including the Cirque du Soleil show "Alegría", which was nominated for a primetime Emmy, "Jesus Christ Superstar", which won an International Emmy, and AC/DC's "Stiff Upper Lip Live" in Munich. He has also directed DVDs for comedians such as The Mighty Boosh, Mitchell and Webb and Bill Bailey. Other work includes numerous trailers and music clips for West End shows such as "The Producers", "Spamalot", "Calendar Girls", "Guys and Dolls", "Edward Scissorhands" and "The Rocky Horror Show". in 2009 he captured Spandau Ballet's triumphant homecoming concert at the O2 Arena in London and Jude Law's portrayal of Hamlet.
Document 13: Enter Sandman: "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.
Document 14: Bill &amp; Ted's Excellent Adventure: Bill & Ted's Excellent Adventure is a 1989 American science-fiction comedy buddy film in which two slackers travel through time to assemble a menagerie of historical figures for their high school history presentation.
Document 15: Metallica: Metallica is an American heavy metal band based in San Rafael, California. The band was formed in 1981 in Los Angeles when vocalist/guitarist James Hetfield responded to an advertisement posted by drummer Lars Ulrich in a local newspaper. Metallica's current lineup comprises founding members Hetfield and Ulrich, longtime lead guitarist Kirk Hammett, and bassist Robert Trujillo. Guitarist Dave Mustaine (who went on to form Megadeth) and bassists Ron McGovney, Cliff Burton, and Jason Newsted are also former members of the band.
ground_truth: Metallica