When Gaga sings acoustic I don't really know who to choose.. Rihanna is great acoustically too
But Rihanna is better at singing and dancing at the same time, Gaga is out of key a lot or just plays loud pre-recorded vocals...
Very few Rihanna fans will tell you Rihanna is a better singer than Gaga and she hardly dances, and when she does and combines the two, it's tragic
I hope if she works with David Guetta again that it's an improvement on "Right Now". I don't dislike it, but it is SO weak/generic for him tbqh. Even something more like "Who's That Chick" I'd be okay with