It’s a female lead singer and lead guitarist that have been playing together since they were teenagers, with dudes on bass and drums. They’re kind of punk-ish, mostly-hard rock, and Emily (lead singer) has some pipes on her. Kind of sounds like if Janis Joplin was in a band that was transitioning either into or out of a punk phase? I dunno, I’m bad at describing music.
Here’s their most well-known song, “Weatherman.” From the first (self-titled) album.