You can vote for more than 1.
...Baby One More Time (1999)
Baby One More Time
Sometimes
(You Drive Me) Crazy
Born To Make You Happy
From The Bottom Of My Broken Heart
Oops!...I Did It Again (2000)
Oops...I Did It Again
Lucky
Stronger
Dont Let Me Be The Last To Know
Britney (2001)
I'm A Slave For You
Overprotected
Im Not A Girl, Not Yet A Woman
I Love Rock'n'Roll
Anticipating
Boys
In The Zone (2003)
Me Against The Music
Toxic
Everytime
Outrageous
Blackout (2007)
Gimme More
Piece Of Me
Break The Ice
Circus (2008)
Womanizer
Circus
If You Seek Amy
Radar
Unusual You
Femme Fetale (2011)
Hold It Against Me
Till The World Ends
I Wanna Go
Criminal
for me its..
Femme > Oops > Zone > Blackout > Circus > Baby > Britney