After "Phrenology", Ben Kenney and Scratch both left the group; Kenney joined the rock band Incubus. This culminated with the release of 2004's "The Tipping Point", the byproduct of several jam sessions. The album earned two more Grammy nominations: one for Best Urban/Alternative Performance for the track "Star/Pointro" and another for Best Rap Performance By A Duo Or Group for the track "Don't Say Nuthin'." "The Tipping Point" peaked at No. 4 on the "Billboard" album chart. In 2005, "Home Grown! The Beginner's Guide To Understanding The Roots, Volumes 1 & 2", a two-disc compilation album, was released. The Roots were among several performers on the 2006 film "Dave Chappelle's Block Party", whose event took place on September 18, 2004 and was released on film two years later.