She's absolutely electric and mind-blowing as a live performer. What she did with Etheridge didn't show her off at all, not her fault - just not a good song for her.
Why do you say her attitude sucks? When I've seen her live, or interviewed, what I get from her is that she is thrilled to have the opportunities she's had and is quite humble.
And like others have said - Broadway? How do we know she can act?
Have I ever shown you my Shattered Dreams box? It's in my Disappointment Closet. - Marge Simpson