This weekend on The iHeartRadio Countdown with Mario Lopez good friend of the show Laura Marano will be checking in via Zoom! She has a brand new EP out called 'You' and her new movie 'The War With Grandpa' is finally hitting theaters! That movie has a star studded cast including Robert Deniro and Uma Thurman. So we'll catch up with her, play some of Mario's favorite throwback classics and of course countdown the top 20 songs in the country! Can The Weeknd regain the top spot again with his massive hit 'Blinding Lights'? Tune in to find out!