Richard Allen Stuverud Jr. is an American drummer from Seattle, Washington. He lives in Oakland, California where he writes, arranges and produces songs. Stuverud played with Pearl Jam on several shows of the Gigaton Tour in May 2022, substituting for drummer Matt Cameron who had tested positive for COVID-19. Drumming duties during these shows were shared with Josh Klinghoffer.

Jeffrey Allen Ament is an American musician best known as the bassist of rock band Pearl Jam, which he co-founded alongside Stone Gossard, Mike McCready, and Eddie Vedder. Ament wrote or co-wrote many of Pearl Jam's hits, including "Jeremy", "Oceans", "Dissident", "Nothingman" and "Nothing as It Seems".