Omg, y'all need to RELAX! This song only got into the top 30 of iTunes about 2 weeks ago, it's not like most songs immediately shoot up to the top 10 of iTunes in a day.

Sure this song is slowing down a little bit, but it's not exactly stalling or anything. Plus, "Locked Out Of Heaven", "Home, and "Beauty And A Beat" are nearing the end of their runs. Taking those away, "C'Mon" will be at #16.
As long as it doesn't stall in the #25-#19 positions, and it doesn't start getting negative updates, y'all need to relax.