Passing the name of a column in a parent report to a child report

I want to reference a column in a parent report for a report Heading in a child report - its a drill through report. The issue now is that this column is not accessible to me from the child report.

Part of my expression is:

="Year Review for " &(

But the column to reference that would dynamically change the Heading is in the parent report. Any idea how I can do this?

Thank you

Zionlite