1 ....... Ariana Grande ???

2 ....... Rihanna

3 ....... Halsey

4 ....... Taylor Swift

5 ........ Lady Gaga

6 ........ Alessia Cara

7 ....... Selena Gomez

8 ........ Demi Lovato

9 ........ Adele

10 ...... Katy Perry

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https://www.billboard.com/charts/year-end/2017/top-artists-female