Spotify (May 2021):

Gimme More – 18,964,322
Toxic – 16,499,900
Oops!...I Did It Again – 10,929,451
...Baby One More Time – 10,272,074
Scream & Shout – 9,680,451
Womanizer – 8,543,981
Circus – 8,082,850
Criminal – 4,368,309
Work Bitch – 4,137,005
I'm a Slave 4 U – 3,404,996

— Britney Daily Streams (@britneyonstream) June 1, 2021