WATCH: Behind The Scenes of The Selena Gomez 'De Una Vez' Music Video!POP QUIZ: Mario & Courtney Go Head to Head in GRAMMY Song Trivia!iHeartRadio Countdown: Randy Jackson Helps Us Countdown The Top 20! LISTEN: Nelly Talks New Song With Florida Georgia Line, 'DWTS' & More!WATCH: Stephen Colletti & James Lafferty Preview New Hulu Show & More!POP QUIZ: Mario & Courtney Go Head to Head in TV Theme Song Trivia!LISTEN: 'Duck Dynasty' Star Sadie Robertson Talks New Podcast, App & More!WATCH: Randy Jackson Talks New Show 'Name That Tune' & More!iHeartRadio Countdown: Aloe Blacc Zooms in! (January 9th, 2021)