Keanu Reeves played bass guitar for the band Weezer.
Keanu Reeves . Active as a musician for over a decade , he played bass guitar for the bands Dogstar and Becky . Weezer is an American rock band formed in Los Angeles in 1992 , consisting of Rivers Cuomo ( lead vocals , guitar ) , Patrick Wilson ( drums ) , Brian Bell ( guitar , backing vocals , keyboards ) , and Scott Shriner ( bass guitar , backing vocals ) .