I don't see her appeal. If she is writing songs for other people then maybe she should save them for herself because this one is about as empty as it gets.
She doesn't have the wry humor or edge of Pink, doesn't have the catchiness of Christina Aguilera, nor the distinctiveness of Gwen Stefani. She comes across, at least in this video, as insubstantial. Sure it's a creative video and I'm glad she pulled that green couture number off the Paris runway, but it doesn't make her a presence in the mind; Madonna she's not.
I also don't think she's pretty and if you're going to trade on your looks then you should be. Plenty of talented unattractive people around but they have talent. I think, if Lady GaGa is everything you say she is, she might just as well stay behind the scenes writing for others. I've already heard rumors about her being a hermaphrodite or intersexed or a man and I can see she worked hard in this video to dispel those rumors.