I mean, she is the best selling digital artist of all time in the United States, and is fairly close to Madonna's single sales in the UK, and we all know Madonna is the "Queen of Pop." She's racked up eleven #1 hits in such a short span in the US, and is third overall among female artists. So has she snagged the coveted title "Princess of Pop?"
Best selling female singles artists in the UK:
1) Madonna
2) Rihanna
3) Kylie Minogue
4) Whitney Houston
5) Lady Gaga
6) Britney Spears
7) Beyonce
8) Celine Dion
9) Mariah Carey
10) Olivia Newton John
Source:
http://www.officialcharts.com/chart-...revealed-1670/