Midtempo or not, I'm impatiently waiting to see the next blueprint Britney will layout for the industry to follow with the next lead single. The amount of songs with dubstep/popstop influences that came about after "Hold It Against Me" is just.
Britney doesn't need to release any mid-tempo or ballad single at ALL, unless it's coming from her heart. "Out From Under," "Criminal" were contrived and generic as hell. "Everytime" worked because it was actually raw and emotional. Justin needs to dip his dick in a bit to reignite some feelings.