American singer and songwriter Halsey has released 3 studio albums, 1 live album, 6 extended plays, 21 singles (including three as a featured artist), 9 promotional singles, and 35 music videos. After being signed to Astralwerks, she released her debut EP Room 93 on October 27, 2014 and then toured with larger acts to promote it and her upcoming album. Since her debut, Halsey has released 9 Gold, 11 Platinum, 7 Multiplatinum, and one Diamond single in the United States alone.

Badlands

Badlands (stylized in all caps) is the debut studio album by American singer-songwriter Halsey. It was released on August 28, 2015 through Astralwerks. Musically, Badlands is a electropop, dark pop, alternative pop, and synth-pop record and features industrial music undertones. Halsey wrote every song on the album when she was 19, while production was handled by a number of producers. Norwegian producer Lido was one of the main producers on Badlands. The album was described by Halsey as lacking a "proper radio hit".

The album debuted at number two on the Billboard 200 albums chart in the United States with first-week sales of 115,000 copies, 97,000 of that estimate being pure album sales. The album was eventually certified double Platinum by the Recording Industry Association of America (RIAA). Badlands found success in many countries outside of the United States; it reached the top ten of the music charts of Australia, Belgium, Canada, Ireland, New Zealand, the Netherlands, Portugal, Scotland and the United Kingdom. It was also certified Gold in several countries, including Australia, Brazil, Canada, and the United Kingdom. The album was further promoted by Halsey's debut headlining world tour, the Badlands Tour (2015–2016).

Room 93

Room 93 is the debut extended play (EP) by American singer and songwriter Halsey. It was released on October 27, 2014 by Astralwerks. The project was re-released digitally on March 9, 2015, including a new version of its main single "Ghost"; this new version was later also included on the singer's debut full-length studio album Badlands (2015). The sound of the EP is rooted on the electropop music genre. A digital remix version of the EP, featuring three remixes for the songs "Hurricane", "Ghost" and "Trouble" was released on March 3, 2015. Along with the remix EP, a "One Mic, One Take" EP was released on the same date. The track "Trouble" was featured on the promo for the episode "Best Laid Plans" from the American TV series Once Upon a Time.

Hopeless Fountain Kingdom

Hopeless Fountain Kingdom (stylized in all lowercase) is the second studio album by American singer-songwriter Halsey. It was released on June 2, 2017 through Astralwerks. The album features guest appearances from Quavo, Lauren Jauregui and Cashmere Cat. Halsey co-wrote every song on the album, while production was handled by Lido and Benny Blanco, among others. Following its release, Hopeless Fountain Kingdom debuted at number one on the Billboard 200 albums chart in the United States and the Canadian Albums Chart. The album was also certified Platinum by the Recording Industry Association of America (RIAA) in the US. In support of the album, Halsey embarked on the Hopeless Fountain Kingdom Tour (2017–2018). The album was described by Halsey as having more "radio friendly music" when compared to her previous releases. As a result, Hopeless Fountain Kingdom is primarily a pop and R and B record and features synth-pop and electropop.