History DevelopmentHell / Music

* ''Music/BeastieBoys''[='=] ''Hot Sauce Committee (Part 1)'', Part 2 of which was actually released. The album was originally scheduled for September 15, 2009, but was frequently delayed by MCA's health problems, resulting in his 2012 [[DiedDuringProduction death]]. (The songs that were scheduled for Part 1 ended up on Part 2, which was released in 2011.) The group managed to record again before MCA died, but it is not known if that material will ever be released.

** By extension, anything related to Music/XJapan or Music/YoshikiHayashi is often subject to this. X Japan's reunion album was first teased in 2008... and still hasn't been released as of July 2021.

* Leslie Carter (Nick and [[Music/AaronCarter Aaron's]] sister) released her first single, "Like, Wow," in 2000, with its parent album of the same name slated to release later that year. The single even appeared on the ''WesternAnimation/{{Shrek}}'' soundtrack. Unfortunately, Creator/DreamWorksRecords folded shortly after and the complete album never saw a proper release. Not helping matters was Carter saying that she never wanted to record an album and her mother forced her to, as well as her later untimely death from a drug overdose in 2012.

* The follow up to Slaughter to Prevail's 2017 album ''Misery Sermon'' has been stuck in the oven for quite some time due to various issues. They started work on the album sometime during 2017-18 but due to heavy touring it got put on the back burner. The decentralized nature of the band (Alex, Evgeny, and Mike are in Russia and Jack Simmons is in Britain) makes it hard to get everyone on the same page. They did release two new singles ("Agony" in 2019 and "Demolisher" in 2020) and had other songs in the works, but [[Main/ScrewedByTheNetwork Sumerian thought that the band wasn't writing their best material.]] After sorting out their issues with Sumerian, COVID-19 hit, making it hard to hit the studio (and in general slowing down music releases). According to drummer Evgeny, the instrumentals are all done as of September 2020, so the new album just needs mixing/mastering before it drops. If things go well the new Slaughter to Prevail album will moved to the escaped section soon.

* Several projects by Music/TheAdventuresOfDuaneAndBrandO were teased across their active years, and were released only in various states of incompletion: a series of albums based on ''VideoGame/{{Earthbound}}'' (which only received one installment in 2010 and a smattering of singles), a track based on ''VideoGame/MegaMan9'' titled "Mega Proto Man 9" (a few snippets and guest verses have seen sporadic appearances), a solo album by Brandon "[=BrandO=]" Lackey based on ''VideoGame/FinalFantasyVII'' (only a snippet of "One Winged Angel" was released), the completion to "[=BrandO's=]" ''[[VideoGame/TheLegendOfZeldaALinkToThePast Zelda 3]]'' series ([[OrphanedSeries the series stopped at episode 5]], reportedly due to [[WhyFandomCantHaveNiceThings BrandO getting sick of the complaints made to his interpretations towards canon]]), and finally, the duo's second proper LP, ''Better Than Nothing'' (which was proceeded by the EP ''Thanks Mom'' in 2015). Most of these projects fell apart due to the repeated interpersonal conflicts between the duo, with their final breakup in 2018 leaving them no longer on speaking terms, all but ensuring they will never be completed.

* DarkWave band Midnight Resistance have been teasing a third album since 2017, (their second having been released way back in 2012) but nothing tangible has surfaced, aside from three singles.

* Norwegian metalcore act Aerial's debut album has been stuck in the oven for quite some time. Originally the band was going to release it sometime after their EP ''Foreign Coast'' dropped in 2016, but the band formally announced their breakup in late 2018. According their Facebook page, they had some demos made for an album that was in the works, but their producer sadly passed away during production. Thanks to fan support and the band wanting to see their work realized, they started a crowdfunding campaign to see it released, which met it's goal in 2020. As of July 2022 the album is still being worked on, but it's been a slow burn. Reasons include the inability to maintain a stable production crew, real life stuff getting in the way, and the band taking a very deliberate approach to writing and recording. Updates happen every so often just to confirm that they are still working on releasing the album.
* ''Music/ChineseDemocracy'', Guns N'Roses sixth album, was intended to originally be released in 1999 but took nearly a decade more to actually see the light of day, finally being released in 2008.

* Music/ChristinaAguilera usually takes four years between albums, averted with ''Lotus'' which was a 2 year job.

* In late 2021, Music/{{Aaliyah}}'s uncle and former label head Barry Hankerson announced that he would be releasing a new posthumous album called ''Unstoppable'' sometime in January 2022, utilizing vocal demos she recorded before her death in 2001. However, the release date came and went, ''Unstoppable'' seemingly showing no signs of coming out anytime soon. Its lead single "Poison" featuring Music/TheWeeknd underperformed and was met with backlash due to the poor quality of Aaliyah's vocals compared to The Weeknd's.[[note]]Aaliyah's fans also called the song "disrespectful" and felt that it tainted her legacy.[[/note]]

* In late 2021, Music/{{Aaliyah}}'s uncle and former label head Barry Hankerson announced that he would be releasing a new posthumous album called ''Unstoppable'' sometime in January 2022, utilizing vocal demos she recorded before her death in 2001. However, the release date came and went, ''Unstoppable'' seemingly showing no signs of coming out anytime soon. Its lead single "Poison" featuring Music/TheWeeknd underperformed and was met with backlash due to the poor quality of Aaliyah's vocals compared to the Weeknd's. Aaliyah's fans also called the song "disrespectful" and felt that it tainted her legacy.

* In late 2021, Music/{{Aaliyah}}'s uncle and former label head Barry Hankerson announced that he would be releasing a new posthumous album called ''Unstoppable'' sometime in January 2022, utilizing vocal demos she recorded before her death in 2001. However, the release date came and went, ''Unstoppable'' seemingly showing no signs of coming out anytime soon. Its lead single "Poison" featuring Music/TheWeeknd underperformed and was met with backlash due to the poor quality of Aaliyah's vocals compared to the Weeknd's. Aaliyah's fans also called the song "disrespectful" and felt that it tainted Aaliyah's legacy.