"Erotic City" (1984)
The "Let's Go Crazy" B-side was not only one of Prince's funkiest jams but also the world's introduction to Sheila E. Carried by a slithering bass line and sweetly simple keyboard riff, Prince fluctuates his voice on one of his nastiest songs – though the use of "fuck" or "funk" has been contested. In the late Nineties, when inducting Parliament-Funkadelic into the Rock & Roll Hall of Fame, Prince revealed that he had recorded the song immediately after seeing the group live at the Beverley Theatre in California. "It was frightening," Prince said. "14 people singing 'Knee Deep' in unison. Clinton later returned the love with a cover.