Spotify (06/13):

Blackout – 587,479
In the Zone – 566,278
Circus – 522,334
...Baby One More Time – 440,385
Oops!...I Did It Again – 423,337
Femme Fatale – 255,720
Britney – 175,457
Britney Jean – 118,327
Glory – 95,536

— Britney Daily Streams (@britneyonstream) June 14, 2021