Originally from Geraldton, singer and guitarist Caleb Harper and drummer Kieran Lama met in high school, and played together (alongside friends Jed Law-Davis and Clinton Hewitt) in a grunge band called Sicchino.

By 2015, Harper and Lama had both moved to Perth as teenagers and were studying at the University of Western Australia, where they met guitarist Ashton Hardman-Le Cornu and bassist Amelia Murray (originally from Tincurrin).

[3] Spacey Jane received airplay on Perth station RTRFM with their second single "Feeding the Family",[8] a track that has been credited for the band's breakout success.

[23] In March 2020, the band participated in Isol-Aid, a stay-at-home festival initiative to assist the Australian music industry during the COVID-19 pandemic, by performing a 20-minute set via an Instagram livestream.

[28] Album track "Booster Seat" received particular acclaim from music publications,[29] with Al Newstead of Triple J calling it a "life-affirming song with a platinum-strength sing-along quality.

[34] In June, they renewed their deal with AWAL, with the label claiming they "firmly believe[d] [Spacey Jane] are now poised to break through on a global scale.

[36] Partnering with Apple Music in August, Spacey Jane released a three-track EP with acoustic versions of "Lots of Nothing" and "Booster Seat", and a cover of Phoebe Bridgers' 2017 single "Scott Street".

[37] They toured the United Kingdom through April, having to add several additional dates after the initial run of shows sold out in a few hours.

[41] Spacey Jane's second studio album, Here Comes Everybody, was released on 24 June 2022,[a] following six singles including "It's Been a Long Day" in April and "Hardlight" in May.

[55] In January 2024, Spacey Jane issued a standalone single titled "One Bad Day", which was written at the end of sessions for Here Comes Everybody.

"[56] Following a year-long hiatus from live performances, Spacey Jane announced in January 2025 that their third studio album, If That Makes Sense, would be released in May.

[59][10] Harper's most important musical influences growing up were the Pixies and Wilco, and said that the Strokes, Kings of Leon and Arctic Monkeys were essential sonic foundations for their first album.

[60] The band's earliest singles and debut EP were "packed full of pulsating rhythm and dirty guitars," integrating a "bold indie pop sound with their own raw Australian top coat.

"[11] With the two singles from In the Meantime in 2018, the band showcased a "notably bright and summery" sound with "light-hearted melodies" with "soaring vocals".

[14] In the Slight developed a "dreamy shoegaze" intersection with their brand of "catchy indie pop",[15] and pointed towards the direction they would take with their first album, Sunlight.

But there’s more to this record than purely chasing the roar of a crowd," commending Harper's vulnerable storytelling contrasting with its affable, jangling melodies.

[61] Spacey Jane continued developing their sound for Here Comes Everybody, which was praised for showcasing new instrumentation and Harper's "fuller use of his vocal range".