The Wall Street Journal today corrected a story reporting that Wal-Mart Stores (NYSE: WMT) would host a Miley Cyrus performance at today's shareholders' meeting. Could the change have anything to do with those Vanity Fair photos?

Of course not. The 15-year old billion dollar phenomenon won't appear "because of a scheduling conflict, the company said." The Wall Street Journal owes its readers an explanation for its faulty reporting. And the way to do that would be to investigate the scheduling conflict. Here are some questions for the Wall Street Journal's reporters to ask Wal-Mart and Miley:

• What was the exact scheduling conflict that came up so suddenly between Thursday and this morning?
• Did Miley decide to book another concert appearance on Thursday just so she could have an excuse to cancel her appearance with Wal-Mart?
• Or did Wal-Mart suddenly decide that Miley's Vanity Fair photos made her "inappropriate"?

Can't Rupert Murdoch hire any competent journalists? We need to know what Miley's scheduling conflict was. A one line correction won't do.

Peter Cohan is President of Peter S. Cohan & Associates. He also teaches management at Babson College and edits The Cohan Letter. He has no financial interest in Wal-Mart securities.