Spotify (05/04):

Blackout – 786,435
Circus – 687,519
In the Zone – 642,411
...Baby One More Time – 525,774
Oops!...I Did It Again – 516,896
Femme Fatale – 319,572
Britney – 219,552
Britney Jean – 153,988
Glory – 148,548

— Britney Daily Streams (@britneyonstream) May 5, 2021