The band's final lineup featured Tali Källström (vocals), Rhodri Daniel (guitar), Steffan Pringle (bass), and Adam Thomas (drums).

The band's roots traced back to 2013 when Welsh-Canadian lead singer, Tali Källström, met guitarist Rhodri Daniel in Aberystwyth.

[9] Even though they always recorded and performed live as a four-piece, this eventually led to the band being referred to as a trio in the press release for their debut album,[10] the liner notes of which stated, "Estrons are Taliesyn Källström, Rhodri Daniel, Steffan Pringle".

[11] "Daniel came up with [the music for] their garage-pop 2015 breakout song 'Make A Man' while standing between two sound-clashing rooms in a Berlin nightclub; Källström wrote the lusty lyrics as an attempt to bring the forthright sexuality of female rappers like Missy Elliott into the rock sphere.

"[8] The song was first released on the band's SoundCloud account on 25 September 2015,[12] while the music video was premiered by Noisey on 3 November 2015.

[15] In March 2016 Estrons headlined the BBC Music Introducing stage at South by Southwest in Austin, Texas, United States.

[24] The EP was described by Noisey as "blistering", and that the songs "don't skirt around their topics—they dive into them head first like a rugby player hurtling towards a kebab shop".

[37] Speaking of "Lilac" in a press release, vocalist and lyricist Tali Källström dedicates the song to "an encounter I had with a teenage girl in the early hours of the morning.

The album was met with critical acclaim, receiving 4/5 star reviews from NME, DIY, The Independent, Dork and Upset Magazine.

[10][46][47][48][49][50][51][52] It was nominated for the Welsh Music Prize in October 2019[7] but lost out to Welsh-language post-punk trio Adwaith's debut album Melyn which was coincidentally produced and mixed by Estrons' own Steffan Pringle.

[53] In December 2018 Källström, together with Queen Kwong contributed to an article by Roisin O'Connor in The Independent titled "Why Matty Healy got it so wrong about rock, hip hop, drugs and misogyny.

Featuring live footage filmed at their sold out homecoming show at the Globe in Cardiff in December 2018, Källström said, "Strangers is about self-acceptance and finding the strength to grow and be on your own.

Louder Than War's Andy Duke wrote in his review, "Källström's vocals are an outstanding force from the outset and cut through the trio's relentlessly powerful instrumentation like ANFO industrial explosives in a Welsh mine.

Whilst leaning towards the more rocking end of the musical spectrum live, this is a band who embrace a melodic top line with Källström's varied delivery offering many different shades and feels across their 12-song set.

[60] The song appears on their third LP entitled Zone Rouge which was released on 15 November 2019 by Cardiff label Bubblewrap Records.

[71] A follow up single called "Deleter" was released on 4 June 2020 and featured drums recorded by Dave Newington from Boy Azooga.