iHeartRadio Countdown - September 22nd, 2018

This weekend on The iHeartRadio Countdown with Mario Lopez we're talking all about the iHeartRadio Music Festival! It's going down right now in Las Vegas so we'll play some classics from this weekends performers and of course countdown the rest of the Top 20! Can Maroon 5 and Cardi B stay in the top slot for a 9th straight week!? Tune in to find out!

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