I originally voted for Rihanna, but Beyonce actually looks pretty good without makeup.
I think honestly, the black girls seem to always be able to pull off looking good without makeup unlike white girls.
Besides, Katy and Britney have smoked some cigarettes from to time, and Britney of course did drugs and stuff. It's gonna effect the body and skin you know
Ke$ha pretty much just doesn't look that good without makeup.