There are performers,
Acting as singers and dancers in an Iowa State Fair.
In the original they were singers and dancers
In a Broadway musical, and perhaps
obliged to act like they weren’t as good as they were.
Tonight’s performance is in a community theatre
which perhaps simplifies the process.

There is an audience on the stage
watching the performers
who are performing the act
of watching; they comment on the show
at the fair they’re not part of.