Question: How many records has the performers of Anthology: Set the World Afire sold worldwide?

full_context: Document 1: 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 2: 3 (Britney Spears song): "3" is a song recorded by American singer Britney Spears for her second greatest hits album, "The Singles Collection" (2009). It was written and produced by Max Martin and Shellback, with additional writing from Tiffany Amber. The song was released on October 6, 2009 by Jive Records, as the only single from "The Singles Collection". "3" is an uptempo electropop song that features a heavy bassline and synthesizers, and lyrics that talk about threesomes, while referencing American folk-singing trio Peter, Paul and Mary during the chorus as sexual slang.
Document 3: 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 4: Anthology: SST Years 1985–1989: Anthology: SST Years 1985–1989 is the first compilation album by the Screaming Trees, covering their tenure under SST Records. "Anthology" consists of three songs from the "Other Worlds" EP, and six each from the "Even If and Especially When", "Invisible Lantern", and "Buzz Factory" albums.
Document 5: Little Box of Horrors: The box set contains all four full-length releases by the band, all with their original artwork (American version). It also contains a fifth disc, entitled "Rare Treats", which features demo versions of many songs, as well as other rare songs by the band. The American release is accompanied by a DVD, entitled "The Transvestite Chainsaw Massacre: Live '98", which features footage of 9 songs performed live at Ground Zero, in Spartanburg, South Carolina, in 1998.
Document 6: 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 7: 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 8: Anthology: Set the World Afire: Anthology: Set the World Afire is the third greatest hits album by Megadeth. It was released on September 30, 2008, by Capitol Records. It is a 2-disc set with additional songs not offered in previous compilations including demos, live performances and unreleased tracks. The album's name refers to the second song of the band's third studio album, "So Far, So Good... So What!".
Document 9: Edward the Great: Edward the Great: The Greatest Hits is Iron Maiden's third "best-of album", originally released on 4 November 2002. In contrast to other works by the group collecting together songs from different albums, such as "Best of the Beast", "Edward the Great" includes no tracks with performances with vocalist Paul Di'Anno; however, material from when Blaze Bayley fronted the band were included.
Document 10: Anthology (Sammy Hagar album): The Anthology is a unique Sammy Hagar compilation album, in that it combines tracks from both of his Capitol Records and Geffen Records eras. Additionally, four tracks from his two Montrose albums on Warner Bros. Records are included.
Document 11: 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 12: 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 13: 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.
Document 14: 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 15: Set the Fire to the Third Bar: ``Set the Fire to the Third Bar ''is a song from Snow Patrol's fourth album, Eyes Open, featuring Martha Wainwright on vocals. The song was released as a single on 13 November 2006.
ground_truth: 38 million
sub_queries: Anthology: Set the World Afire >> performer Answer: Megadeth
how many records has Megadeth sold worldwide? Answer: 38 million