Question: How many records has the performer of Rust in Peace Live sold worldwide?

full_context: Document 1: United Abominations: United Abominations is the eleventh studio album by American thrash metal band Megadeth. Released on May 15, 2007, "United Abominations" is the first Megadeth release distributed through Roadrunner Records and, with the exception of the band's frontman Dave Mustaine, was recorded with an all-new line-up. While touring to promote the album, guitarist Glen Drover left the band for personal reasons and was replaced by Chris Broderick, leaving this as the only Megadeth studio album to which he contributed.
Document 2: That One Night: Live in Buenos Aires: That One Night: Live in Buenos Aires is a live album from American heavy metal band Megadeth which was released on CD and DVD formats. It features a live concert recorded in Buenos Aires on October 9, 2005 at the Obras Sanitarias Stadium. The performance is segued by cuts of Dave and Glen performing a few acoustic songs for some fans on the lawn outside of the band's hotel. It was at this concert that Dave Mustaine announced that Megadeth would continue on past the 2005 tour.
Document 3: Rust Never Sleeps: Rust Never Sleeps is a live album by Canadian singer-songwriter Neil Young and American band Crazy Horse. It was released on June 22, 1979, by Reprise Records. Most of the album was recorded live, then overdubbed in the studio. Young used the phrase "rust never sleeps" as a concept for his tour with Crazy Horse to avoid artistic complacency and try more progressive, theatrical approaches to performing live.
Document 4: Megadeth: In mid-2005, Mustaine organized an annual thrash metal festival tour, Gigantour. Megadeth headlined the inaugural tour with acts such as Dream Theater, Nevermore, Anthrax, and Fear Factory. Performances at the Montreal and Vancouver shows were filmed and recorded for a live DVD-and-CD set released in the second quarter of 2006. On October 9, following the successes of The System Has Failed and the Blackmail the Universe world tour, Mustaine announced to a sold-out crowd at the Pepsi Music Rock Festival in Argentina that Megadeth would continue to record and tour. The concert, held at Obras Sanitarias stadium in Buenos Aires in front of 25,000 fans, was filmed and released on DVD as That One Night: Live in Buenos Aires in 2007.In February 2006, bassist James MacDonough left the band over "personal differences". He was replaced by James LoMenzo, who had worked with David Lee Roth, White Lion, and Black Label Society. The new Megadeth lineup made its live debut headlining the Dubai Desert Rock Festival in the United Arab Emirates with Testament. In March, Capitol released a two-disc DVD, Arsenal of Megadeth, which included archive footage, interviews, live shows, and many of the band's music videos. Due to licensing issues, soundtrack and non-Capitol videos were not included. The second Gigantour began during the third quarter of 2006; Megadeth again headlined, this time with Lamb of God, Opeth, Arch Enemy and Overkill. The 2006 tour included three dates in Australia, supported by Soulfly, Arch Enemy, and Caliban.
Document 5: Vs. (Pearl Jam album): Pearl Jam decided to scale back its promotional efforts for "Vs.", including declining to produce music videos for any of the album's singles. Upon its release, "Vs." set the record for most copies of an album sold in its first week, a record it held for five years. "Vs." occupied the number one spot on the "Billboard" 200 chart for five weeks, the longest duration for a Pearl Jam album. The album has been certified seven times platinum by the RIAA in the United States.
Document 6: Head Crusher: "Head Crusher" was the first single from American heavy metal band Megadeth's twelfth studio album, titled "Endgame", which was released on September 15, 2009. The single was released on July 7, 2009. According to "Roadrunner Records" official website, a download of "Head Crusher" was available for 24 hours on July 7 (the availability of download ended the morning of July 8). The track was previously available for listening by calling Dave Mustaine's number, through the TheLiveLine.com, a service he launched that enables musicians to connect to their audience over the phone. The song was played live for the first time at the "Canadian Carnage Tour" on June 24, 2009. On December 3, 2009, it was announced on the official Megadeth homepage that "Head Crusher" had been nominated for "Best Metal Performance" for the 52nd annual Grammy Awards, the band's first nomination in 13 years, since "Trust".
Document 7: Rust in Peace Live: Rust in Peace •Live• is a live album by American heavy metal band Megadeth, released in 2010 through Shout! Factory in Blu-ray, DVD, and CD formats. The release was in celebration of the 20th anniversary of the original release of "Rust in Peace" and it is the first Megadeth release since 2002's "Rude Awakening" to feature bassist David Ellefson.
Document 8: Rust in Peace: Rust in Peace is the fourth studio album by American thrash metal band Megadeth, released on September 24, 1990 by Capitol Records. Following the departure of band members Jeff Young and Chuck Behler in 1989, "Rust in Peace" was the first album to feature guitarist Marty Friedman and drummer Nick Menza. "Rust in Peace" received universal acclaim from fans and critics, and was responsible for bringing Megadeth to the attention of a mainstream metal audience. It has been cited as one of the best thrash metal records of all time by publications such as "Decibel" and "Kerrang!", and listed as one of the "1001 Albums You Must Hear Before You Die". The album was nominated for a Grammy Award for Best Metal Performance at the 33rd Grammy Awards. At the 1991 Foundations Forum, it won a Concrete Foundations Award for Top Radio Album and the singleHangar 18 won Top Radio Cut.
Document 9: Metallica: This Monster Lives: The book follows the emotional roller-coaster both he and his film partner Bruce Sinofsky and the band Metallica went through during the creation film. The book takes in the time from Berlinger and Sinofsky's first meeting with Metallica in 1999 to the 2003 Summer Sanitarium Tour. Berlinger and Sinofsky's relationship was at an all time low, exacerbated by Berlinger's decision to direct the disastrous sequel to the Blair Witch. At the start of filming the relationship between the band members, especially between vocalist James Hetfield and drummer Lars Ulrich, is in a similarly perilous position after bassist Jason Newsted quit the band and long standing grudges between the remaining members threaten to escalate past the point of no return.
Document 10: Rude Awakening (Megadeth album): Rude Awakening is the first live album by American heavy metal band Megadeth. The album was released by Sanctuary Records in 2002, and is the last release before the band broke up in 2002. It was released in both CD and DVD formats.
Document 11: Megadeth: Megadeth has sold over 38 million records worldwide, earned platinum certification in the United States for five of its fifteen studio albums, and received twelve Grammy nominations. Megadeth won its first Grammy Award in 2017 for the song "Dystopia" in the Best Metal Performance category. The band's mascot, Vic Rattlehead, regularly appears on album artwork and live shows. The group has drawn controversy for its music and lyrics, including album bans and canceled concerts; MTV refused to play two of the band's music videos that the network considered to condone suicide.
Document 12: Rap God: The song entered the Guinness World Records as the hit single which contains the most words (which includes 1,560 words),, which it still holds, but it was then overtaken as song with the most words by MC Harry Shotta's song ``Animal ''(which includes 1771 words, but was not a hit single) in the 2017 edition of Guinness. It was also nominated for a Grammy Award for Best Rap Performance, but lost to Kendrick Lamar's`` i''.
Document 13: Live at Grimey's: Live at Grimey's is a live album by the American heavy metal band Metallica. The album was recorded live on June 12, 2008, at The Basement, a venue beneath Grimey's New & Preloved Music in Nashville, Tennessee, just before their appearance at the Bonnaroo Music Festival. It was released on November 26, 2010. It was released on both CD and vinyl, and is available at independent record stores, as well as the band's website. In its first week after release, the EP sold around 3,000 copies.
Document 14: Peace Sells: "Peace Sells" is a song by the American thrash metal band Megadeth from the 1986 album "Peace Sells... but Who's Buying?", written by Dave Mustaine. It has since been a constant at Megadeth concerts. According to Dave Ellefson, it became quickly apparent when playing the song live prior to recording the album that "Peace Sells" would be a hit. In 2006, VH1 ranked "Peace Sells" at number 11 on their list of the "40 Greatest Metal Songs" of all time. The song is also known for the distinctive bass intro played by Ellefson.
Document 15: List of awards and nominations received by Iron Maiden: In 1994, one of their singles, "Fear of the Dark", received a Grammy nomination for Best Metal Performance. Seven years later, the band were nominated again in that category, with the song "The Wicker Man". In 2011, Iron Maiden won the award with "El Dorado". In 2002, they won the Ivor Novello Award for international achievement. Iron Maiden received a nomination from the "Kerrang!" Awards in the "Best Live Act" category in 2003, and were inducted into the "Kerrang!" Hall of Fame two years later. At the 2006 Metal Storm Awards, "A Matter of Life and Death" was named the best heavy metal album of the year. Iron Maiden have also received nine awards from fourteen nominations at the "Metal Hammer" Golden Gods Awards. Their mascot Eddie, who has previously been used by US critics to argue that Iron Maiden are Satanists, received a Golden Gods nomination in 2006, losing to singer Cristina Scabbia; but was awarded in 2008. Later in 2008, Iron Maiden were nominated in the Best Live Return category at the Vodafone Live Music Awards, to which the band disagreed with their nomination and asked to be withdrawn, stating that they were "not quite sure where we are returning from." They were replaced by the band James. The band were named "Best British Live Act" at the 2009 BRIT Awards, winning via a public poll. They were not able to attend the ceremony, ironically due to touring duties, instead delivering an acceptance message by video link-up. Their film "" won, in the category "24 Beats Per Second", at the SXSW film Festival, held in Austin, Texas, in March 2009. Overall, Iron Maiden have received twenty-nine awards from thirty-nine nominations.
ground_truth: 38 million
sub_queries: Rust in Peace Live >> performer Answer: Megadeth
how many records has Megadeth sold worldwide? Answer: 38 million