Conversation so far:
When did Daron Malakian become a part of Scars on Broadway
Following System of a Down's hiatus in May 2006, Daron Malakian announced his latest project — Scars on Broadway — a band which would include John Dolmayan and himself.

Question: How many people were a part of the group?
Self-contained rewrite: How many people were part of Scars on Broadway?