Their second single, "Three Leaf Clover", was released in March 2020 and became the winning song of Triple J's 2020 Unearthed High competition.

They released their debut studio album, The Rot That Grows Inside My Chest, in October 2023, and an accompanying short film in 2024.

The pair met in 2018 when introduced by a mutual friend at Northern Sound Systems when Blakers was searching for a band-mate.

At the time of their music releasing, Borg attended Gleeson College, making the band eligible for the Unearthed High competition, which they went on to win.

[2] On 26 March, the duo released the single "Ice Cream", and announced their forthcoming debut EP, Taste of Me.

[11] In 2024, the band released their debut short film, a visual accompaniment for The Rot That Grows Inside My Chest.

[14] Teenage Joans say their lyrics "feel nostalgic and feel like [something] you could consume as a young person, but also have a heavier kind of meaning that people can relate to,"[16] with frontwoman and guitarist Cahli Blakers stating that one of their favourite things to do when writing is "juxtaposing serious topics using childlike metaphors in order to get the point across in a different way.