El site OfficialCharts.com ha actualizado los números de ventas de todos los singles de Britney Spears, desde «…Baby One More Time» hasta el más reciente «Slumber Party«:
Sometimes: 465,000
(You Drive Me) Crazy: 290,000
Born To Make You Happy: 340,000
Oops!… I Did It Again: 485,000
Lucky: 240,000
Stronger: 215,000
Don’t Let Me Be The Last To Know: 65,000
I’m A Slave 4 U: 231.000
Overprotected: 165,000
I’m Not A Girl, Not Yet A Woman: 170,000
I Love Rock N’ Roll: 80,000
Boys: 90,000
Me Against The Music: 150,000
Toxic: 440,000
Everytime: 400,000
My Prerogative: 130,000
Do Somethin’: 80,000
Gimme More: 245,000
Piece Of Me: 285,000
Break The Ice: 110,000
Womanizer: 450,000
Circus: 230,000
If U Seek Amy: 125,000
Radar: 50,000
3: 200,000
Hold It Against Me: 170,000
Till The World Ends: 200,000
I Wanna Go: 30,000
Scream & Shout: 870,000
Ooh La La: 10,000
Work Bitch: 90,000
Pretty Girls: 50,000
Make Me…: 80,000
Slumber Party: 7,500
Fuente: Official Charts