TRAVERSE CITY, Mich. - Michigan's Cherry Capital city is getting ready for the Material Girl.

Fans are getting ready for Madonna to make an appearance at the Traverse City Film Festival founded by her pal Michael Moore.

She is to introduce her documentary -- "I Am Because We Are'' -- before its screening on the weekend.

The movie deals with the orphans of Malawi, the African country where she and husband Guy Ritchie adopted a son.

Madonna is not expected to make any other public appearances and might not even stick around for the showing.

Her appearance comes amid the release of a tell-all book by her brother and speculation about her relationship with New York Yankees' star Alex Rodriguez.

Madonna and Rodriguez both deny an affair.