Bass Brothers is the professional name for the team of Mark and Jeff Bass, the Detroit producers responsible for grooming Eminem in his early days and collaborating on much of his subsequent music. Before that they worked with George Clinton. Tracks from those sessions ended up on the P-Funk All Stars album Dope Dogs. Jeff Bass is considered one of the most influential people in Eminem’s career. On their work with Eminem, Mark and Jeff Bass are credited as F.B.T. Productions.