Conversation so far:
When did John Butler's solo career begin?
On 29 June, Butler gave a live solo performance at Twist and Shout Records in Denver, Colorado, which was released in January 2008 as an eight-track EP.
Did John Butler play anywhere else besides Twist and Shout Records in Denver, Colorado?
John Butler played at the Montreal Jazz Festival.
Where else did John Butler play besides the Montreal Jazz Festival?
John Butler played at the Rothbury Music Festival in Michigan and The Mile High Music Festival in Denver
Did John Butler play internationally after playing at the Rothbury Music Festival in Michigan and The Mile High Music Festival in Denver?
John Butler played at the Folies Bergère in Paris and London's Union Chapel. He also performed at Cannes, Amsterdam and Antwerp.
Did John Butler play anywhere else in North America?
John Butler played in Toronto.

Question: What other major cities did he play?
Self-contained rewrite: What other major cities did John Butler play besides Toronto?