Louisa Hall (left) and Annie Nardolilli of Griefcat prepare to bite an apple. Griefcat: Louisa Hall (left) and Annie Nardolilli. Griefcat, Monday, Oct. 28, Bur Oak, 8 p.m.: Griefcat had a viral moment with their song “Revolution (Poop at Work),” which quickly piled up 15 million video streams. That song is part of the 2024 collection Late Stage Capitalism, a concept album offering a sharply satiric take on how money has infiltrated life, love and work. (Sample lyric from “Cryptobro:” “there is no future for you and me/in your mythical future economy.”) The duo of Louisa Hall and Annie Nardolilli are on tour for a few shows this fall, with opener Jamie Shriner, who also uses humorous songs to confront serious topics. Tickets at theburoakmadison.com.