While Miley's album Can't Be Tamed dropped to #9 on the Billboard 200 Albums chart this week, the single Can't Be Tamed dropped 13 spots to #31 on the Billboard Hot 100.
Source: Billboard.
The good news is that I heard Can't Be Tamed on the radio for the first time today. Maybe if radio stations start playing the song more it will gain some momentum. It seems pretty unlikely at this point now though with the song dropping out of the top 30.