The production on is notable for its eclecticism, with Perry collaborating with a range of producers, including Max Martin, Ilya Salmanzadeh, and Ali Payami. The album's songwriting is characterized by Perry's storytelling ability, as she tackles topics such as mental health, relationships, and personal growth.

received generally positive reviews from music critics, with many praising Perry's willingness to experiment with new sounds. The album debuted at number one on the US Billboard 200 chart and spawned several successful singles. While some critics noted that the album lacked cohesion, Witness has been recognized as a significant step in Perry's artistic evolution.

Released on June 9, 2017, marked a significant departure from Perry's previous work. This album was a reflection of her personal growth, as she navigated a period of self-discovery and introspection. Witness features 13 tracks, including the hit singles "Chained to the Rhythm" (feat. Skip Marley), "Swish Swish" (feat. Nicki Minaj), and "Save as Draft." The deluxe edition, which is the focus of this article, includes three additional tracks, offering an even more comprehensive listening experience.