Why do people keep saying gaga. Most agencies require that modes be at least 5 "8" to model on runways. Gaga is only 5 "2" so she would be relegated to print modeling....and well we all know she doesnt have a face for print advertising
Gaga may be ugly but with enough makeup, her personality and ethnicity come off as really exotic behind the camera. I'd actually prefer her over anyone else. Beyonce and RIhanna too obviously
I'd say Rihanna. She has such a gorgeous face. It is very inviting of the camera and so she always glows.
Other than that, Cassie could (and.. does?) but if we're talking about real supermodel quality I don't think she would. Beyonce for a time really looked a lot like Naomi Campbell in like 2003 at times. But Beyonce is about the curvy body so I don't think she'd become a supermodel.
Like other industries, the fashion world is wary of cross-over stars. They aren't always super inviting of celebrity appearances rather using fashion-celebrities so I don't think any pop girl could successfully make it to supermodel status like Naomi, Evangelista, Giselle, Kate etc.
She can't be a model.