This Is Serious Mum (or TISM) are an Australian anonymous satirical rock band formed in 1982 in Springvale, Victoria. Known for their satirical lyrics and eccentric live performances, they released six studio albums from 1988 to 2004, and they split up later that year. They are best known for their songs "Greg! The Stop Sign!!", "(He'll Never Be An) Ol' Man River", "Whatareya?", and "I Might Be A Cunt, But I'm Not A Fucking Cunt". They reformed in 2022 with a performance at the Good Things Festival before releasing a new studio album called "Death to Art" in 2024.

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