Summary

Rationale for use on Wikipedia:

1. No free equivalent exists that would effectively identify the article's subject.
2. The image does not in any way limit the ability of the copyright owners to market or sell their product.
3. The image is only used once and is rendered in low resolution to avoid piracy.
4. The image has been published outside Wikipedia; see source above.
5. The image meets general Wikipedia content requirements and is encyclopedic.
6. The image meets Wikipedia's media-specific policy.
7. The image is used in the article wiki-linked in the section.
8. The image is significant in identifying the subject of the article, which is the song.
9. The image is used in the article section giving a visual description of Madonna in the promotional poster.
10. The image has a brief description that identifies the image, notes the source, and provides attribution to the copyright holder.

Resolution:

The copy is of sufficient resolution for commentary and identification but lower resolution than the original. Copies made from it will be of inferior quality, unsuitable as artwork on pirate versions or other uses that would compete with the commercial purpose of the original artwork.

Replaceable?:

As a poster, the image is not replaceable by free content; any other image that shows the images from the copyrighted poster would also be copyrighted, and any version that is not true to the original would be inadequate for identification or commentary.

Compatibility with Wikipedia?:

Use of the poster in the article complies with Wikipedia non-free content policy and fair use under United States copyright law as described above.

Licensing

This image is of a poster, and the copyright for it is most likely owned by either the publisher or the creator of the work depicted. It is believed that the use of scaled-down, low-resolution images of posters to provide critical commentary on the film, event, etc. in question or of the poster itself, not solely for illustration on the English-language Wikipedia, hosted on servers in the United States by the non-profit Wikimedia Foundation, qualifies as fair use under the copyright law of the United States. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content for more information.

Fair use true