RateTheMusic

1. Create an account here: https://www.ratethemusic.com/mobile/ratethemusic#!/rtm

2. After creating your account, Choose your Format. The Biggest ones are Top 40, Urban, Rhythmic and others. 

3. After you chose your Radio Habit you'll open the side menu and click Top Songs 

4. Listed are the different formats. Depending on the song genre click each chart and vote for the song of your choice.