I am not sure actually..
Katy is pretty versatile even tho she doesn't show it that much, she is.
Rih and Gaga are the most versatile, along with Beyonce and Christina...
I don't really know about Britney and Nicki ( I mean I've only heard nicki rapping and singing pop, that's it) And Taylor can sing country and pop at the very least + play the piano, guitar that alone makes her more versatile than Britney and Nicki (at least)
So idk who, Britney vs. Nicki I guess... probably Britney
Gaga has songs like Speechless, You and I, Brown Eyes
Songs like Paparazzi, Bloody Mary, DWUW, So Happy I could Die etc.
like C2C is not even needed in order for Gaga to still be tied with Rihanna and Beyonce/Xtina
The simple fact that Gaga can make a completely different reendition of any of her songs on the piano (on her own) makes her more versatile than Katy, Nicki and Britney at the very least
