Today on the Greatest Pop Stars Podcast, host Andrew Unterberger is joined by Billboard staff writer Kyle Denis and senior branded content producer/writer Walaa Elsiddig to remember the iconic career of our No. 3 Greatest Pop Star of the 21st Century, Rihanna. We remember everything there is to remember about Rihanna's incredible 13-year run at the center of pop music (and fashion and social media and everything else), and how even after the eight-year wait since her most-recent album -- with no end to that in sight -- she remains a towering figure in pop culture.

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