Rihanna takes No. 3 for Billboard's 25 Greatest Pop Stars of the 21st Century ... with "Pon de Replay," her lead single off her debut album reaching No.2 on the Hot 100. And the first single ...

(In 2018, the Billboard staff released a list project of its choices for the Greatest Pop Star ... and center for the hit-packed album was a newly confident Rihanna, who owned her singular vocals ...