Bleech 9:3 are a Dublin born, Streatham based band formed in 2024. The band consists of brothers Guitarist/Singer Barry ‘Baz’ and Bassist James Quinlan, Guitarist Sam Duffy and Drummer Luke ‘Rusty’ O'Neil.

The band was formed by Barry and Sam, who met in a Dublin-based 12-step recovery program, later relocating to London.

Sam and Luke were in the original lineup for Dublin based band ‘Basht.’ with Baz and James previously in a band called JaVill.

They released their debut single ‘Ceiling’ in October 2025 and released their debut self titled E.P. on May 15th 2026.