Grumpus is a post-punk band from Brooklyn, New York. The band was formed in 2016 and consists of vocalist/guitarist Jeff Rosenstock, bassist/vocalist Nadia Hulett, and drummer Joe Steinhardt. Grumpus's music is characterized by its angular guitars, driving rhythms, and sardonic lyrics. The band has released two albums, "Grumpus" (2018) and "Divides" (2020), as well as a number of singles and EPs. Grumpus has toured extensively throughout the United States and Europe, and has shared the stage with bands such as Parquet Courts, Protomartyr, and The Men.