The video features her chasing a little girl into a house located in the woods at night, eventually setting it on fire and dousing herself in gasoline, hinting at Hanna's suicide.

Commercially, "Monster" experienced minor success in the United States, peaking at number 19 on the Billboard Pop Digital Songs chart.

During her interview, she performed excerpts of "Monster" a cappella, prompting several users to create satirical videos where her vocals were replaced by various sounds.

[5][6] In a Carpool Karaoke video on YouTube with Ricky Dillon, Hanna revealed that she initially chose a considerably lower key for the song.

[5] There, she belted the song's refrain a cappella with "voracity";[6] Hanna retrospectively explained: "Before I scream 'monster', they use the boom mic that was directly above me, and for the part where I yell, they use the audio from, I believe, the camera.

This caused several users to create short satirical clips in which the singer's vocals were replaced by "high-pitched squeal[s]" or the "vintage Windows launch sound effect", among others.

Hanna "fully embraced the craze", changing her Twitter display name to "monsTEeeEeRRRRR" and uploading a video on her YouTube as an "official response".

[4] In April 2021, Hanna accused American singer Bebe Rexha's music video for "Sabotage" (2021) of plagiarism, showing side-by-side frames of the latter and her "Monster" clip via her Twitter account.