Jeff Ament is an American musician best known as the bassist for the rock band Pearl Jam. Born on March 10, 1963, in Havre, Montana, he has been a key member of the band since its formation in 1990. Ament is recognized for his distinctive playing style and contributions to the band's songwriting. In addition to his work with Pearl Jam, Ament has been involved in various side projects and collaborations, including the band Mother Love Bone. He is also an avid skateboarder and has supported various charitable causes, particularly those related to music education and environmental conservation.