These things are not always accurate, though. Madonna is credited as a writter of Physical Attraction (and of Borderline, If my memory is not failing me) on one of these publisher's websites and is not credited on the album, so...Hey You is credited to solo Madonna on the publisher's website and that's the citation Wikipedia (where I got the tidbit) had
https://web.archive.org/web/20150219054951/http://www.warnerchappell.com/song-details/WW008801988000