This week's guest is best known as singer-songwriter and guitarist of Speedy Ortiz. She's also got a sweet solo project under the name Sad13. Plus, she's got a song with Lizzo! Last year, she released her first book – "Mouthguard," which is available now wherever you get books. We're thrilled to share our conversation with Sadie Dupuis about 'Round Springfield. We'll talk Simpsons tattoos, Steve Allen, jagged metal Krusty-O's and more!