[4] In March 2018, Carpenter also released "Alien" with British DJ Jonas Blue which reached number one on the US Dance Club Songs chart.

[7] The trailer was directed by Lauren Dunn with snippets from songs including "Sue Me", "Mona Lisa" and "I Can't Stop Me".

[9] In October, during a performance of "Almost Love" on The Late Late Show with James Corden, Carpenter ripped off a piece of the set wall revealing a part of the album cover art and spray painted "11/9" on the wall indicating that the album was scheduled for release on November 9, 2018.

[16][1] Its lyrical content centred around empowerment with PopCrush writer Erica Russel calling it an introduction to Carpenter's "playful psyche".

[17] The album cover portrayed Carpenter on a staircase "amidst the chaos" where "you feel like you really are the only one who exists in the crowd".

[19] Affinity writer Lucy Parry called it a "great start to the album" noting that the "bridge is possibly the best part of this track as they strip away the bass-line".

[18] Parry noted that the song might sound like a cliché but rather works as the opposite, with Carpenter using her head voice over "a gorgeous guitar riff".

[20] "Hold Tight" was described as "stellar slow jam" and features Amir Mitchell-Townes as Uhmeer, one of Carpenter's castmates from Girl Meets World.

[18][20] "Sue Me" was written by Carpenter after she had been sued by her ex music managers Stan Rogow and Elliot Lurie for allegedly not paying them commissions after she fired them in 2014.

[21] In an interview with Live With Kelly & Ryan, Carpenter noted that the song is about "empowerment", "confidence: and "being comfortable with yourself regardless of what anybody thinks".

[22] Nied called the song a "self-assured tune for the end of a relationship" adding that it is a "sassy kiss-off".

[18] He called the album "lush with potential hits" and "another near-perfect work from one of the industry's brightest young stars.

[18] The Line of Best Fit writer Julian Baldsing rated the album 7.5 out of 10, stating that "it's certainly no small triumph that Singular: Act I stands so firmly by itself and its creation marks an exciting new phase of an artist properly coming into her own.

"[19] He added that "Carpenter has always displayed a knack for crafting and curating strong pop releases" and that the album "sees her hone these skills further, resulting in her tightest, most polished project to date".

[19] Lucy Parry from Affinity called the album "a pop masterpiece" and its production "exquisite" also praising the use of more mature themes compared to her previous works.

[20] Earmilk writer Larisha Paul gave the album 9 stars noting that Carpenter showed her "versatility on a myriad of sonic landscapes".