Christina has or had way more natural rhythm than Stiffney! The Like a Virgin performance was a prime example. Christina looked natural and Britney looked stiff and uncomfortable
Gaga tries, but it doesn't really come off well, but I'll give her credit on trying to add dancing into her shows.
Rihanna is more of a booty shaker
I think if Katy tried harder she'd pull something semi good off, her dancing in the CG videos is cute and fun
Kesha will never be able to dance.