Filled with menacing, stalking spirals of lean, hungry riffs, 'Black Pearl' is the 2022 album by US indie band 50 Foot Wave. The line-up comprises Kristin Hersh with fellow Throwing Muses member Bernard Georges on bass and drummer Rob Ahlers. 50 Foot Wave is hailed in various quarters as "an outlet for the material deemed too weird or wild for Throwing Muses".