Formed in London in 2022 by brothers Finn Keogh (vocals, guitar) and Conor Keogh (bass), Keo later grew with the additions of Oli Spackman (drums) and Jimmy Lanwern (guitar). The Keoghs’ musical roots sprang from their childhood touring with their father’s traditional Irish folk project across the UK, Ireland, and the US. The band's debut single "Echo On" emerged in 2023, with a breakthrough single, “I Lied, Amber”, unveiled in March 2025, via AWAL. The band's debut EP Siren, a five-track release that includes “I Lied, Amber” and “Thorn", was released later that year.
