Oh I thought the question meant something different.
Gaga isn't the most versatile, but her Electropop/synthpop experiments with different sounds and influences, and usually isn't safe. Same with Beyonce's R&B pop. That's why they're more experimental than, say Xtina, who does a lot of genres but doesn't add anything to them.
So then you agree that Gaga can do more genres than Rih?
No because like i stated Gaga has not done all of the genre's Rihanna has done as the other member listed.You can't deny that Rihanna has done more genres than Gaga.There is a difference here between who's experimented with more genres and who does them better. But just because she hasn't done as many does not mean she is not versatile at all, i'd be delusional to say otherwise.