Posições número 1º de WB no ITunes

Actualmente #WorkBitch #1 em 28 países :
#1 Argentina
#1 Armenia
#1 Chile
#1 Costa Rica
#1 Cyprus
#1 Dominican Republic
#1 Ecuador
#1 El Salvador
#1 Finland
#1 Greece
#1 Guatemala
#1 Hungary
#1 Israel
#1 Kazakhstan
#1 Latvia
#1 Malaysia
#1 Mexico
#1 Panama
#1 Paraguay
#1 Peru
#1 Russia
#1 Slovakia
#1 Spain
#1 Thailand
#1 Turkey
#1 Ukraine
#1 Venezuela
#1 Vietnam
Es #2 en 11 países
#2 Brazil
#2 Brunei Darussalam
#2 Bulgaria
#2 Cambodia
#2 Canada
#2 Colombia
#2 France
#2 Honduras
#2 Italy
#2 Slovenia
#2 Sweden
Es #3 en en 4 países
#3 United States
#3 Nicaragua
#3 Poland
#3 Romania
NOTA: Em USA caiu para #3
Fonte: http://kworb.net/itunes/artist/britneyspears.html