Question: For what was the artist who created the artwork for the Metallica's seventh album famous?
Context: Ride the Lightning is the second studio album by American heavy metal band Metallica, released on July 27, 1984, by the independent record label Megaforce Records.  The album was recorded in three weeks with producer Flemming Rasmussen at the Sweet Silence Studios in Copenhagen, Denmark.  The artwork, based on a concept by the band, depicts an electric chair being struck by lightning flowing from the band logo.  The title was taken from a passage in Stephen King's novel "The Stand".  Although rooted in the thrash metal genre, the album showcased the band's musical growth and lyrical sophistication.  This was partly because bassist Cliff Burton introduced the basics of music theory to the rest of the band and had more input in the songwriting.  Instead of relying strictly on fast tempos as on its debut "Kill 'Em All", Metallica broadened its approach by employing acoustic guitars, extended instrumentals, and more complex harmonies.  The overall recording costs were paid by Metallica's European label Music for Nations because Megaforce was unable to cover it.  It was the last album to feature songwriting contributions from former lead guitarist Dave Mustaine. Andres Serrano (born August 15, 1950) is an American photographer and artist who has become famous through his photos of corpses and his use of feces and bodily fluids in his work, notably his controversial work "Piss Christ", a red-tinged photograph of a crucifix submerged in a glass container of what was purported to be the artist's own urine.  He is also notable for creating the artwork for the heavy metal band Metallica's "Load" and "ReLoad" albums. Back for Good is the seventh album of Modern Talking released on 30 March 1998 after the unexpected reunion of the duo.  The German duo's seventh album was released after almost 11 years of absence.  The album "Back For Good" is a collection of their previous hits which consists of 18 tracks, including four new songs, 13 previous hits in a redone format and 1 medley.  Some of the earlier hits, however, were rehashed and arranged absolutely differently including "Lady Lai" and "Angie's Heart". Shamans is the seventh album by the Azeri jazz artist Aziza Mustafa Zadeh, released in 2002.  In the liner notes, Zadeh left a comment about each song.  The artwork contains a number of paintings by her.  Around 2,000,000 copies of this album were sold worldwide. Reload is the seventh studio album by American heavy metal band Metallica, released on November 18, 1997 by Elektra Records.  The album is a follow-up to "Load", released the previous year, and Metallica's last studio album to feature longtime bassist Jason Newsted.  "Reload" debuted at number one on the "Billboard" 200, selling 436,000 copies in its first week.  It was certified 4× platinum by the Recording Industry Association of America (RIAA) for shipping four million copies in the United States. "On Top" is the second single by American rapper Twista of his seventh album "Category F5".  The song features R&B singer Akon and was produced by GoodWill & MGI, "On Top" was confirmed as the second official single of Twista's seventh album, after the lead single Wetter featuring singer Erika Shevon 7 Vezes (Portuguese: "7 Times" ) is the seventh album by Brazilian band O Rappa.  The title alludes to the fact that this is the seventh album O Rappa has released.  It was produced by Ricardo Vidal, Tom Sabóia and O Rappa.  It is distributed through Warner Music. "Better Than You" is a song by American heavy metal band Metallica.  It is the fifth track on their seventh album, "ReLoad".  The song was originally titled "Better".  It won the 1999 Grammy Award for Best Metal Performance, it was the band's fourth award in that category.  The song is about somebody who's obsessed of the struggle to be better than somebody else.  The band performed a jam of the song for the first time in London in 1995.  The single cover features the same picture as the cover of Metallica's "Cunning Stunts" as well as on the final page of "Reload".  The song qualifies on all grounds, lyrics full of festering resentment, Hammett giving lengthy solo. "Fuel" is a song by American heavy metal band Metallica.  The song was written by James Hetfield, Lars Ulrich, and Kirk Hammett, and was released as the third single from their seventh album, "Reload".  Metallica have frequently played the song in concert over the years, including the 1999 live album "S&M" with Michael Kamen conducting the San Francisco Symphony Orchestra.  Fuel was nominated for a Grammy Award for Best Hard Rock Performance in 1999 but lost to Jimmy Page and Robert Plant for the song "Most High". Flerte Fatal (Portuguese for Fatal Flirt) is the seventh album by Brazilian rock band Flerte Fatal, released in 2007.  After the extensive tour of the "Acústico MTV", the band decided to return to the studio, but the main objective of Flerte Fatal was to re-record classics of Brazilian rock.  During the recording, the group began to develop their own compositions, and the band didn't want to discard them, so it was decided that the seventh album would be a double album: the first disc would be covers, while the second disc would be original songs.
Answer: his photos of corpses and his use of feces and bodily fluids in his work