Spotify (05/09):

Blackout – 712,110
Circus – 628,166
In the Zone – 614,869
...Baby One More Time – 472,494
Oops!...I Did It Again – 471,719
Femme Fatale – 284,853
Britney – 190,654
Britney Jean – 132,055
Glory – 122,796

— Britney Daily Streams (@britneyonstream) May 10, 2021