JasperReports: How to call a java bean method in report template?

I am passing a java bean collection into a jasper report. I have several fields for this java bean defined an they are display just fine in my report.

Im wondering if there is a way to call a method of a java bean that is being passed into this report???

E.g. an expression for a text field, something like....

{current java bean}.methodToCall()