Update: Call It The BritTunes

Top 100 singles:

#1 'Circus'

#10 'Womanizer'

#19 'Shattered Glass'

#23 'If U Seek Amy'

#34 'Kill The Lights'

#41 'Womanizer'

#45 'Out From Under'

#57 'Unusual You'

#61 'Lace And Leather'

#78 'Radar'

#92 'Mannequin'

Top 100 albums:

#1 'Circus'

#8 'Circus'

#86 'Blackout'

Top 100 ringtones:

#1 'Circus'

#8 'Womanizer'

#12 'If U Seek Amy'

#25 'Womanizer'

#43 'Kill The Lights'

Top 100 pop singles:

#1 'Circus'

#5 'Womanizer'

#9 'Shattered Glass'

#11 'If U Seek Amy'

#14 'Kill The Lights'

#17 'Womanizer'

#21 'Out From Under'

#23 'Unusual You'

#25 'Lace And Leather'

#28 'Radar'

#30 'Mannequin'

#33 'Mmm Papi'

#35 'Blur'

#43 'Piece Of Me'

#47 'My Baby'

#56 'Toxic'

#59 'Circus'

#80 'Break The Ice'

#89 'Gimme More'

Top 100 pop albums:

#1 'Circus'

#2 'Circus'

#12 'Blackout'

#15 'Blackout'

#19 'In The Zone'

#25 'Britney'

#33 'Greatest Hits'

#39 'B In The Mix'

#44 'Oops I Did It Again'

#45 '...Baby One More Time'

Source: Break The Ice