The order of countdown was originally decided by a mix of record sales, radio airplay, video spins, message board posts, and conventional mail, but since 2006, supposedly online votes have directly influenced the countdown.
The order of countdown was originally decided by a mix of record sales, radio airplay, video spins, message board posts, and conventional mail. A combination of record sales, radio airplay, video spins, message board posts, and conventional mail would decide the order of the countdown.