Eddie Vedder put on a special performance for former President Bill Clinton and Ben Affleck (pictured) in LA on Friday. The Pearl Jam frontman did an acoustic set of four songs at an intimate event thrown by uber-agent Patrick Whitesell and wife Lauren at their home. We’re told Clinton and Affleck invited 50 guests for dinner and a Q&A, moderated by the “Argo” director, benefiting the Eastern Congo Initiative. Other guests included Jennifer Garner, Ari Emanuel and Casey Wasserman.