By Amy Ryan
February 03, 2007 at 06:06 AM EST

Another PopWatch HeadScratcher to get you through the weekend:

What do these five recording artists have in common?

Ashford & Simpson
Cameo
Prince & the Revolution
Run-D.M.C.
Sade

Your answer should be as specific as possible. Send your best guess to popwatch@ew.com/.Be sure to write “HeadScratcher” in the subject line and include yourfirst and last names in your e-mail. We’ll post the most interestingresponses Monday afternoon.

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