Psy 9th

[8] On December 30, 2021, Psy's publishing label P Nation announced the album would finally be released in the following year after multiple delays due to his schedules and management of his company.

[12] During an interview, Psy revealed that the long production time was due to his reliance on collecting feedback from fellow artists, friends, and other people he trusts as he refines each song.

[13] Despite achieving international success, the album was not specifically targeted at a foreign audience, with Psy focusing on performances in Korea after its release.

Psy attempted new flow styles in the song and reflected the frustrations of translating Jessi's English lyrics into Korean.

[18] "Sleepless" was recorded in a single day; Psy has stated that he hoped it would heal people's souls who are tired from a hard night at work.

[21] The music video for "That That" features Suga of BTS, and has the duo wearing cowboy outfits and dancing in a western themed saloon.