Question: In what year was the band that sings the song "Before I Forget" founded?

Context articles: Before I Forget (song)
(I Can't) Forget About You
No Sé Olvidar
The Twilight Sad discography
Don't Forget to Remember
Nunca Voy a Olvidarte
The Entertainer (song)
Open Your Eyes (Warzone album)
Witchcraft (Witchcraft album)
Slipknot (band)

"Before I Forget" is a Grammy Award-winning song written and recorded by American metal band Slipknot.
 It is the third single from their 2004 album "".
 It was listed as AOL's top metal song of the decade.
"(I Can't) Forget About You" (in the album version known simply as "Forget About You") is a song by American pop rock band R5, taken from their debut studio album, "Louder".
 The song was released as a single on December 25, 2013.
"No Sé Olvidar" (English: "I Don't Know How to Forget" ) is a song written by Kike Santander and performed by Mexican recording artist Alejandro Fernández.
 It was co-produced by Santander and Emilio Estefan and was released as the third single from "Me Estoy Enamorando" by Sony Music Mexico in 1997.
 The song is a bolero-pop ballad with ranchera influences and portrays the singer desperately trying to forget his lover.
 A music video was made for the track which features Fernández hopelessly attempting to not remember his lover only to slowly delve into insanity.
 It received a nomination for Video of the Year at the 1998 Lo Nuestro Awards.
The discography of Scottish rock band The Twilight Sad consists of four studio albums, four compilation albums, eleven singles, and five extended plays (EPs).
 The band currently consists of James Graham (vocals), Andy MacFarlane (guitar, producer), and Mark Devine (drums).
 The Kilsyth-based band formed in 2003 and were signed to Fat Cat Records when Alex Knight, co-founder of the label, went to Glasgow to watch the band perform their third gig and signed them on the spot.
 The band released their debut EP "The Twilight Sad" in November 2006 in the United States only, followed by their debut album "Fourteen Autumns & Fifteen Winters" in April 2007, which garnered widespread critical acclaim.
 The album spawned two singles, "That Summer, at Home I Had Become the Invisible Boy" in April, and "And She Would Darken the Memory" in July.
 The following year, the band released "Here, It Never Snowed.
 Afterwards It Did", a mini-album of reworked versions of songs from "Fourteen Autumns & Fifteen Winters" and two non-album tracks, inspired by stripped-down live performances.
 A collection of live versions and previously unreleased tracks entitled "Killed My Parents and Hit the Road" was released in December 2008.
 The Twilight Sad's second studio album, "Forget the Night Ahead", was released in September 2009 to further acclaim and marked a shift in the band's direction towards a darker and more streamlined sound.
 The album produced three singles: "I Became a Prostitute" in August 2009, "Seven Years of Letters" in October 2009, and "The Room" in April 2010.
 Founding bassist Craig Orzel left the band in February 2010, and the band released "The Wrong Car" EP in September of that year.
"Don't Forget to Remember" also called "Don't Forget to Remember Me" is a country ballad recorded by the Bee Gees, from the album "Cucumber Castle".
 The song was written by Barry and Maurice Gibb.
 It was produced by the band with Robert Stigwood.
"Nunca Voy a Olvidarte" (English: "I Am Never Going to Forget You") is a song written by Roberto Belester and first recorded by Mexican norteño band Bronco for their album "Salvaje y Tierno" (1991).
 In the song, the protagonist is leaving and vows to never forget the time he spent with his lover.
 In 1993, Mexican singer-songwriter Cristian Castro covered the song on his album, "Un Segundo en el Tiempo".
 Castro's version peaked at number-one on the "Billboard" Hot Latin Songs chart in the United States became his first number-one single.
"The Entertainer" is a single by singer Billy Joel released as the only single from his 1974 album "Streetlife Serenade".
 The song peaked at #34 on the US charts, a Top 40 hit for Joel that year.
 The song is a cynical and somewhat satirical look at the fleeting fame of a musician and fickle public tastes ("Today I am your champion / I may have won your hearts / But I know the game / You'll forget my name / And I won't be here / in another year / if I don't stay on the charts"); this theme would be examined in the later song "It's Still Rock and Roll to Me".
 Another verse in the song references the shortening of Joel's song, "Piano Man", from 5 minutes and 38 seconds to 3 minutes and 5 seconds to fit a radio slot, referenced by the lyrics "It was a beautiful song, / but it ran too long / If you're gonna have a hit, you gotta make it fit / So they cut it down to 3:05."
 Additionally, the timing printed on the label of the 7" release of "The Entertainer" was 3:05, although the actual 45 length was 3:11 (while the album length was 3:41).
 In the single version, Verse 3 (which starts at 1:02 in the album version) is edited out, and Verse 2 (which starts at 0:40) contains a steel guitar in its second half, which is actually featured in the second half of the "third" verse in the album version; indeed, on the single mix, the instrumental crescendo of the album version is anticipated by bringing the fuller instrumentation of Verse 3 under the vocals of Verse 2.
 As a result of this, the slightly emptier original instrumentation of Verse 2 (which includes a downward slide on the synth) and the vocals of Verse 3 are completely omitted, while the instrumentation of Verse 3 (featuring the steel guitar) does appear, but earlier.
Open Your Eyes was the second full-length album from New York hardcore band, Warzone – who originated in Lower East Side, Manhattan, United States.
 It was released in 1988 on Caroline Records and follows on from their first album, "Don't Forget The Struggle, Don't Forget The Streets", the previous year.
Witchcraft is the debut album from the Swedish doom metal band Witchcraft.
 The album was released in 2004 by Rise Above Records.
 "Please Don't Forget Me" and "Yes I Do" are both covers of 70s-era Pentagram.
 "Yes I Do" appears on the original LP version and the Japanese press; it does not appear on the picture disc.
 "Please Don't Forget Me" is credited to Bobbly Liebling on the sleeve and is often mis-accredited to Liebling's pre-Pentagram outfit, Stone Bunny.
 The cover image is a slightly altered version of a print called "Merlin", a pen-and-ink drawing by Aubrey Beardsley for an 1893-94 edition of Sir Thomas Malory's "Le Morte d'Arthur".
 Additionally, the band formed to be a one-off tribute band to both Bobby Liebling and Roky Erickson, and only intended to make one song (No Angel or Demon) however, they continued and are now an original band.
Slipknot is an American heavy metal band from Des Moines, Iowa.
 The band was founded in September 1995 by percussionist Shawn Crahan and drummer Joey Jordison.
 After several lineup changes in its early years, the band settled on nine members for more than a decade: Corey Taylor, Mick Thomson, Jim Root, Paul Gray, Craig Jones, Sid Wilson, Shawn Crahan, Chris Fehn and Joey Jordison.
 Gray died on May 24, 2010, and was replaced from 2011–2014 by former guitarist Donnie Steele.
 Jordison left the band on December 12, 2013.
 Steele left during the recording sessions for "".
 The band found replacements in Alessandro Venturella on bass and Jay Weinberg on drums.
 After the departure of Jordison, as of December 2015 the only founding member in the current lineup is percussionist Crahan; the other remaining members of Slipknot have been members since the release of the band's 1999 eponymous debut album.