I found this sentence in an Oxford University Press ESL book.
Is it right?
We're going to a rock concert. A local band are playing, and they're really good.
Is the article before the "local band" determinant for the use of the verb in the plural? I know that "band" is a countable group noun; therefore, it allows you the use of singular and plural verb forms. But is the article correct, in this context?
Thank you.