After an absence of almost five years from the Top Ten, Diana Ross reasserted her superstardom with a vengeance on the chart-topping "Upside Down," whose irregular thumping rhythms and lusty vocals bridged funk and disco. The track was written and produced by Bernard Edwards and Nile Rodgers of Chic, though Ross had the album from which it came remixed to make her vocals more prominent. "I was furious and got on the phone right away and called Motown," Rodgers said. "Then I had to say, 'Hey! I know where they're coming from. I understand what they're doing.'"