This weekend on The iHeartRadio Countdown with Mario Lopez we finish our annual top 40 of the past year countdown! We will countdown songs 20 through number 1 of the top 40, play some other jams that didn't quite make the top 40 and make our predictions on who might make next years countdown! Plus Mario will talk 2020 pop culture moments, holidays and more!
What's your prediction for the top song of 2020? Tweet us @ONWithMario! AND be sure to tune in this weekend to find out!