Last week, when Richard Marx's "Satisfied" vaulted into the No. 1 position, it looked like just the kind of durable record that could hang on to the top spot for several weeks and end the recent string of one-week champs.

This week, "Satisfied" slipped all the way to No. 3, making way for yet another new leader: Milli Vanilli's "Baby Don't Forget My Number," which moved all the way up from No. 4 to give the dance duo their second straight hit and first No. 1. (They just missed in April, when "Girl You Know It's True" peaked at No. 2.)