This weekend on the iHeartRadio Countdown with Mario Lopez, Mario counts down the 20 biggest hits of the week and reveals who has surpassed last week’s champ to become our new Number 1! Plus, we catch up with NSYNC’s Chris Kirkpatrick to talk about his time on The Masked Singer, hosting the Pop 2000 Tour, & more! Our Throwback Track takes us back 11 years to when the Cardinals clinched the World Series in Game 7 & Paranomal Activity 3 set Box Office records! All that & so much more!
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