Mark Bass

The Bass Brothers are an American record producer brother duo comprising Mark and Jeff Bass. They were responsible for helping Eminem with the creation of Infinite. 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.