Madonna to introduce film at Michigan festival (AP)

TRAVERSE CITY, Mich. - Michigan's cherry capital is getting ready for pop royalty.

Madonna will appear Saturday night at the Traverse City Film Festival, which was founded by Michael Moore and takes place in a fruit-growing region of their native Michigan.

She is to introduce her documentary, "I Am Because We Are," before a screening. The movie deals with the orphans of Malawi, the African nation where she and husband Guy Ritchie adopted a son.

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

She appears 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.