Smog is the recording project of American singer-songwriter Bill Callahan, known for his understated vocals, vivid storytelling, and minimalist folk-rock sound. Emerging in the early 1990s on the indie label Drag City, Smog evolved from lo-fi home recordings to richly arranged albums that explore themes of solitude, redemption, and human connection. Influenced by artists such as Leonard Cohen and Bob Dylan, Callahan’s work under the Smog moniker, including *Red Apple Falls* and *A River Ain’t Too Much to Love*, established him as a defining voice in modern American songwriting.