This weekend on The iHeartRadio Countdown with Mario Lopez actress and singer Victoria Justice checks in! She's got a new movie out called 'Trust', a couple new singers and has even more in store for 2021 as well! So we'll catch up with her, play some throwback classics and of course countdown the top 20 songs in the country! Can Olivia Rodrigo take over the #1 spot? Tune in to find out!