Behind Mark Klepaski

Markus James "MJ" Klepaski (born September 11, 1975) is an American bass guitarist, best known as the former bass player for the American post-grunge/alternative metal band, Breaking Benjamin, as well as formerly playing bass for the band Stardog Champion.

Mark James Klepaski is a bass player known for his work in the band Breaking Benjamin (2001-2012). Breaking Benjamin is an American rock band from Wilkes-Barre, Pennsylvania, currently fronted by vocalist and guitarist Benjamin Burnley. The band released four studio albums, Saturate in 2001, We Are Not Alone in 2004, Phobia in 2006, and Dear Agony in 2010, selling over five million albums in the United States alone.
Before Breaking Benjamin, Mark was the bass guitar player for Lifer (Strangers With Candy). He and guitarist Aaron Fink eventually made the decision to leave Lifer for Breaking Benjamin.