For over a decade, Marty “Big Dog” Mercer’s heartfelt, southpaw blues and soulful voice has growled through the Chicago music scene.

Mercer’s ability to combine emotional lyrics with aggressive slide guitar makes him an artist unlike any other.

Earning his moniker from local blues favorites, the “Big Dog” has proven to be a talent no one saw coming.

Hailing from Wisconsin, Mercer found his passion for music while playing his first instrument, a trombone, at the age of 8.

By the time he wa...