[5] During an interview with The Guardian's Rob Fitzpatrick, Marshall said that from a young age, he experienced discipline issues and refused to go to school.

[1] He claims that the tests took a toll on him; that the doctors, counsellors and psychiatrists were wrong most of the time; that he hated everybody; and that he would hide in his room for hours on end.

[1] During an interview with NPR, Marshall recalled that he often created art in many different media, as his parents encouraged creativity throughout his childhood.

[10] King Krule released his debut album 6 Feet Beneath the Moon on 24 August 2013, his 19th birthday.

[15] In December 2015, under the name Archy Marshall, he released an album titled A New Place 2 Drown, which includes 12 songs, a 208-page book of visual art and text and a ten-minute documentary.

[6] Marshall took to NTS Radio, hosted by Mount Kimbie, and released two songs under the name Edgar the Beatmaker.

[26] On 20 June 2024, King Krule released the EP SHHHHHHH!, along with a self-directed music video for the song "Time for Slurp".

[27] Many reviewers and journalists have noted King Krule's unusual transcendence and appropriation of disparate genres.

[32] Jason Lymangrover of Allmusic states that his songs are mainly in the form of ballads with major seventh chords, but by contrast there is also a "grittiness" to Archy's voice and persona, portraying him as "the type of kid who would be quick to throw a punch without asking questions.

[33] He is inspired by disparate influences such as Elvis Presley, Gene Vincent, Josef K, Chet Baker, Fela Kuti, J Dilla, Billy Bragg, Aztec Camera (his godfather is the band's former drummer, Dave Ruffy) and The Penguin Cafe Orchestra.

[35] Marshall's lyrics, according to a Flaunt magazine interview, generally consist of romance, sex, aggression, conflict, and depression.

These themes link to his literary influences, in which Marshall further elaborated: "Literature, poems, songs are all very similar[.]

I used to read lots of poetry and sit there for ages trying to decipher the meaning, or work out the narration behind it all, then I found my own form of that.

[37] In 2019, Patmore directed Hey World!, a video preceding the release of Marshall's album Man Alive!.