Claim: Jeff Ament has been a member of Pearl Jam since 1990.

Jeffrey Allen Ament -LRB- born March 10 , 1963 -RRB- is an American musician and songwriter who serves as the bassist for the American rock band Pearl Jam .   Along with Stone Gossard , Mike McCready , and Eddie Vedder , he is one of the band 's founding members , and is also known for his work prior to Pearl Jam with the 1980s Seattle-based grunge rock bands Green River and Mother Love Bone , and is particularly notable for his work with the fretless bass , upright bass , and twelve-string bass guitar . Ament is also a member of the bands , Tres Mts. , Three Fish and RNDM .   In 2008 , Ament released his first solo album , Tone . A second solo album , While My Heart Beats , followed in 2012 .   Ament was inducted into the Rock and Roll Hall of Fame as a member of Pearl Jam on April 7 , 2017 .