Conversation so far:
Who was the original line up?
original lineup included Tariq "Black Thought" Trotter (MC) and Ahmir "Questlove" Thompson (drums.
Where did they meet?
classmates at the Philadelphia High School for Creative and Performing Arts.
Who was added?
Josh "The Rubberband" Abrams.
Where did they find him?
As they began to play at school and on local streets.
What did he end up doing?
went on to form the jazz group The Josh Abrams Quartet.

Question: Who did they add next?
Self-contained rewrite: Who did The Roots add next after Josh Abrams left?