well done for now, but how many singles will actually be remembered in 20 even 10 years from now?

Umbrella
Rude Boy
and Maybe We Found Love...

Compare that to Britney or even Beyonce

Oops I Did it Again
Hit Me Baby 1 More Time
Toxic
Gimme More
Piece Of Me
Womanizer

or Beyonce's

Independent Woman
Survivor
Say My Name
Bootylicious
Crazy In Love
Irreplaceable
Single Ladies
Halo