Diet Baby is an EP by Irish singer-songwriter CMAT, born Ciara Mary-Alice Thompson, originally self-released in 2021. The EP compiled her first four singles: Another Day (KFC), Rodney, I Wanna Be a Cowboy, Baby! and I Don't Really Care for You. Oli Deakin handled production and mixing. Diet Baby predated her debut album If My Wife New I'd Be Dead from 2022 and showcased an early, country-leaning pop style.