Historically, the #1 song on Billboard's year end chart started off in the beginning of the year (or Billboard tracking year Dec. 1st) since they have the whole year to chart and sell, songs that start charting now generally fill the top 10. Do we already have the #1 song? A lot of songs are also released wno well before they chart run stars and take off later (a la Rolling In The Deep and Somebody I Used To Know)
Are one of the pop stars going to grab or will an unknown artist that has already released going to smash.?
I think that Say Something has a good chance since it already is selling very well with little airplay, which is taking its sweet time adding it. If not maybe The Monster or Dark Horse. Including Timber and Counting Stars we might already have 1/2 of the top 10.