It's been described as the "ultimate sad banger". By 2010, Robyn had transformed from mid-1990s major label pop star into a fiercely independent artist with her own record label, Konichiwa Records.

Rihanna is one of our Greatest Pop Stars of the 21st Century for her untouchable decade of pop culture dominance.

Our new GPS21C episode covers an artist who only became more brilliant over each of the 13 years she spent in the spotlight.