Bassist and backup vocalist for the punk band Green Day.
Plays in a side band called The Frustrators, which is on the record label that band mate Billie Joe Armstrong of Green Day co-owns.
Married his girlfriend Anastasia in 1996
Has a daughter, Estelle-Desiree. (b. April, 1997)
The pressures of Mike being in Green Day were too much for him and Anastasia to deal with, so they separated.
Earned his trademark last name from the sound that a bass makes. His friend gave him it one day and it stuck.