"Know Your Enemy" is a song by the American rap metal band Rage Against the Machine.
 It features Tool vocalist Maynard James Keenan on vocals during the bridge section.
 The "Allmusic" describes the song as "immediately memorable" and "surprisingly straightforward", while music critic Joel McIver cited it as "a standout track" of the album.
is an American band formed in Los Angeles by Maynard James Keenan, known as the lead singer of the bands Tool and A Perfect Circle.
 As Keenan is the only permanent member, he considers the project to be his "creative subconscious."
 In light of this, Puscifer is considered a pseudonym for his solo work.
Maynard James Keenan (born James Herbert Keenan; April 17, 1964), often referred to by his initials MJK, is an American singer, songwriter, musician, record producer, actor, and winemaker.
 He is best known as the vocalist for the alternative rock bands Tool, A Perfect Circle, and Puscifer.
The discography of American alternative rock supergroup A Perfect Circle consists of three studio albums, two compilation albums, one extended play, one video album, nine singles, one promotional single and ten music videos.
 A Perfect Circle is the brainchild of Billy Howerdel.
 After hearing demos of Howerdel's music, Maynard James Keenan, the lead singer of Tool, offered his services as vocalist.
 Howerdel agreed, and the band formed in 1999.
 They were then joined by bassist/violinist Paz Lenchantin, guitarist Troy Van Leeuwen, formerly of Failure, and drummer Tim Alexander, formerly of Primus.
 Soon after entering the studio to record their first album, Alexander was replaced by Josh Freese of The Vandals. "
Mer de Noms" was released in May 2000, selling 188,000 copies its debut week.
 The band embarked on a number of headlining tours all over the world to promote the album which was certified gold by the Recording Industry Association of America (RIAA) one month after its release, and platinum just four months later.
Children of the Anachronistic Dynasty (also known as C.A.D.) was an American rock band based in Grand Rapids, Michigan notable for being one of the early bands of Maynard James Keenan, later of the bands Tool, A Perfect Circle and Puscifer among others.
"V" Is for Viagra.
 The Remixes is a remix album by Puscifer, a side project of Maynard James Keenan, which was released on April 29, 2008.
 It contains ten remixes of tracks from the first Puscifer album ""V" Is for Vagina", as well as two remixes of the non-album single "Cuntry Boner".
Maynard James Keenan is best known as the lead singer of rock bands Tool, with whom he has recorded four studio albums and earned two Grammy Awards, and A Perfect Circle, with whom he has recorded three studio albums.
 Puscifer, a side project created by Keenan, has released three studio albums.
"V" Is for Vagina is the debut studio album by Maynard James Keenan's side project Puscifer, released on  30, 2007 (2007--) .
 The album features a significantly different, electronic sound and arrangements than Keenan's other bands: the progressive Tool and alternative A Perfect Circle.
 Keenan himself compared the sound of ""V" Is for Vagina" to "driving around in your car listening to those old Motown hits, James Brown, and cool R&B stuff". "
"V" is for Vagina" has sold 112,000 copies.
Joshua Leeds Eustis is an American musician, singer-songwriter and record producer, best known as the current sole member of electronic music act, Telefon Tel Aviv, since the death of bandmate Charles Cooper in 2009.
 He served as a touring member for industrial rock act Nine Inch Nails in 2013 and has collaborated heavily over the years with Maynard James Keenan's solo project Puscifer, for which he also served as a touring member.
 Eustis' solo project is Sons of Magdalene, of which he began releasing music under in 2008.
 He is also a founding member of the band The Black Queen.
A Perfect Circle is an American rock supergroup formed in 1999 by guitarist Billy Howerdel and Tool vocalist Maynard James Keenan.
 A Perfect Circle has released three albums: their debut "Mer de Noms" in 2000, a follow up, "Thirteenth Step" in 2003, and an album of radically re-worked cover songs titled "Emotive" in 2004.
 Shortly after "Emotive"' s release, the band went into hiatus while Keenan returned to Tool and starting up solo work in the form of the band Puscifer, and Howerdel releasing a solo album, "Keep Telling Myself It's Alright", under the moniker Ashes Divide.
 Band activity was sporadic in the coming years; the band reformed in 2010, and played live shows on and off between 2010 and 2013, but fell into inactivity after the release of their greatest hits album, "Three Sixty", and a live album box set, "" in late 2013.
 However, in 2017, the band returned to touring and announced plans to record and release a fourth studio album under a new record label, BMG Rights Management, between late 2017 and early 2018.

Question: "V" Is for Vagina is the debut studio album by Maynard James Keenan's side project Puscifer, the album features a significantly different, electronic sound and arrangements than Keenan's other bands: the progressive Tool and alternative A Perfect Circle, is an American rock supergroup formed by Billy Howerdel and Tool vocalist Maynard James Keenan, in what year?
Answer: 1999