Conversation so far:
Where did Buffalo Springfield first begin their career?
in Thunder Bay, Ontario.
Who were the members?
Neil Young and Stephen Stills met in 1965, at the Fourth Dimension in Thunder Bay, Ontario.
Where did the name come from?
The group's name was taken from a brand of steamroller made by the Buffalo-Springfield Roller Company.
When did they make their debut?
The new group debuted on April 11, 1966, at The Troubadour in Hollywood.
Who were some of the other acts they performed with?
Drummer Dewey Martin, who had played with garage rock group the Standells and country artists such as Patsy Cline.
What genre of music did they play?
CANNOTANSWER.
Who was their drummer?
Drummer Dewey Martin.

Question: Were they ever an opening act for anyone?
Self-contained rewrite: Was Buffalo Springfield ever an opening act for anyone?