Displaying Datasource Parameters in Report Body

I have a report with a parameter set at the datasource level to pull the Top N results from the database.

I would like to be able to display the current value of the Top N datasource parameter in a text box in the body of my report.

Is there a way to do this simply?

i.e.

Datasource Parameter: @topCount

Text Box: Top {@topCount} Records by Total