Question: Are Corey Taylor and Tyler Spencer both authors?

Context articles: List of songs recorded by Stone Sour
Stone Sour (album)
Gay Bar (song)
Evil Cowards
Corey Taylor
Hydrograd
Great Big Mouth Records
Tyler Spencer
Junk Beer Kidnap Band
Bother (song)

Stone Sour is an American alternative metal band from Des Moines, Iowa.
 Originally formed in 1992 by vocalist Corey Taylor, guitarist Josh Rand, bassist Shawn Economaki and drummer Joel Ekman, the band was active until 1997, when Taylor left to join Slipknot.
 Guitarist Jim Root, who had joined the band later, also joined Slipknot in 1999.
 Stone Sour reunited several years later, releasing its full-length debut album "Stone Sour" in 2002 which featured songs from early demos. Ekman was replaced by Roy Mayorga in 2006, who performed on the band's second album "Come What(ever) May".
 The songs on the album were written by Taylor, Root, Rand and Economaki.
Stone Sour is the debut studio album by American heavy metal band Stone Sour.
 It was recorded and produced by the band and Tom Tatman at Catamount Studios in Cedar Falls, Iowa, and was released on August 27, 2002, through Roadrunner Records.
 Writing for the album began in 2000 while vocalist Corey Taylor and guitarist Jim Root were still actively involved in their other band, Slipknot.
 Work began on the album after Slipknot had gone on hiatus following touring in support of their second album "Iowa".
"Gay Bar" is a song by American rock band Electric Six.
 Written by band member Tyler Spencer, under the pseudonym Dick Valentine, it was released in June 2003 as the second single from their debut studio album, "Fire" (2003).
 While both the song and music video received significant airplay, lyrics mentioning war were edited due to their possibly offensive nature since the song made its air debut at the start of the Iraq War.
Evil Cowards is an electronic dance-rock band created by Tyler Spencer of Electric Six, and William Bates of Fall On Your Sword.
Corey Todd Taylor (born December 8, 1973) is an American musician, singer, songwriter, actor, and author, best known as the lead singer and lyricist of the American heavy metal band Slipknot and the American alternative metal band Stone Sour.
Hydrograd is the sixth studio album by American heavy metal band Stone Sour.
 Recorded at Sphere Studios in Los Angeles, it is the follow-up to the band's 2012–2013 double concept album, "House of Gold & Bones" Part 1 and 2.
 It was released worldwide on June 30, 2017 via Roadrunner Records.
 "Hydrograd" also had a special album premier with commentary on each song from front man Corey Taylor on June 29, 2017 on Octane (Sirius XM).
 Four singles were released in promotion of the album ahead of its release; "Fabuless", "Song #3", "Taipei Person/Allah Tea" and "Mercy" (Live Recording at Sphere Studios).
Great Big Mouth Records is a record label based in Des Moines, Iowa, which was founded by Slipknot and Stone Sour frontman Corey Taylor and Denny Harvey.
 The label was conceived to help bring attention to Midwestern bands, Taylor explains; "basically we're just trying to unify the scene and really bring more attention to the Midwest than there is right now."
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Tyler Spencer (born January 22, 1972), also known as Dick Valentine, is an American singer, songwriter, musician, and author.
 He is best known as the lead vocalist, main lyricist, and co-founder of the rock band Electric Six.
The Junk Beer Kidnap Band is an American rock band from Des Moines, Iowa, formed in 2009.
 They are a side-project of Corey Taylor, frontman of the heavy metal band Slipknot and rock band Stone Sour.
 Since their formation, JBKB have currently solely been a touring band for lead singer and guitarist Taylor's solo work.
 No official studio album has been announced.
"Bother" is the second single from the heavy metal band Stone Sour's self-titled debut album.
 It was originally released as a solo song by frontman Corey Taylor, but the billing was later changed to Stone Sour.
 The song was one of Stone Sour's first songs to put them into the mainstream.
 The cover features Taylor's hands and rings, one of them being a Spider-Man ring which is a reference to the song being featured on the soundtrack to the film "Spider-Man" (although the track is credited to Taylor as the performer not Stone Sour) and to Taylor being a fan of Spider-Man.
 The other has the number 8 on it, representing Taylor's number in Slipknot.
 Taylor has stated that the song is about when he moved back to Des Moines from Denver, where he hoped to try to move forward with his music.