Conversation so far:
What can you tell me about Levon and the Hawks?
Bruno left in May 1964, and at that time the group changed their name to Levon and the Hawks.
What was the driving force behind the name change?
CANNOTANSWER.
Are there any other interesting aspects about this article?
The members of Levon and the Hawks befriended blues artist John P.
Hammond while he was performing in Toronto in 1964.

Question: Did they collaborate with anyone of note?
Self-contained rewrite: Did Levon and the Hawks collaborate with anyone of note?