Today on the Greatest Pop Stars Podcast, host Andrew Unterberger is joined by Billboard staff writers Kyle Denis and Hannah Dailey to talk about our No. 9 Greatest Pop Star of the 21st Century, Ariana Grande. We make the case -- not obvious to or agreed upon by all -- that she is one of the 10 greatest pop stars of the century so far, despite being a relatively newer artist, and how everything from her deep cuts to her romantic drama to her evolving album rollout strategy to her sometimes-contentious relationship with her fans has helped make her an era-defining icon.

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