Billboard : Les singles best-seller de Britney

Top 10 des ventes digitales
3,298,000, "Womanizer"
2,966,000, "Circus"
2,638,000, "Till the World Ends"
2,225,000, "3"
1,815,000, "Toxic"
1,770,000, "Piece of Me"
1,713,000, "Gimme More"
1,592,000, "I Wanna Go"
1,520,000, "Hold It Against Me"
1,255,000, "If U Seek Amy"

Meilleurs ventes autres formats (CD/Cassette)
1,412,000, "...Baby One More Time"
778,000, "From the Bottom of My Broken Heart"
415,000, "Stronger"
60,000, "Me Against the Music" (feat Madonna)
57,000, "Oops!...I Did It Again"