It already outpeaked Break The Ice, and it will outsell it
The good sis Break The Ice with that lame video and a #43 peak spent 17 weeks on the Billboard Hot 100 and sold over 750k. At this point I don't if WB will sell that.
Maybe only if radio keeps supporting it because we can't count on any promotion by Team Britney.
I've always said that i didn't want to release a dance song as the lead single and that dance music was fading.
Anyway, personally I think Sia's really overrated and would much prefer a Naughty Boy track as the next single, i'm just here for anything OTHER than EDM whether that be a ballad or an urban uptempo.