I watched first episode's encore
And I must say the singers are rather dreadful
The big muscled black guy was BARKING the chorus of "Complicated", and his cocky attitude sucks ass.
The rocker chick sounded like she was literally VOMITING
The "opera" that needed a microphone shoved inside his mouth in order to project (the opposite of a real opera singer should be).
None of them are particularly great vocalists, IMO.

I read also the Rolling Stone article today, Christina is so arrogant about her singing "I am known for being a great vocalist" (bitch, please)...BUT I give her kudos for signing ON THE CONDITION that there wouldn't be humilation-type auditions like in American Idol, and she always gives positive constructive criticism to the people auditioning.

I must say...she is not such a bitch after all, she seems quite nice and friendly
It's her stans the ones who are the dreadful demented hyenas.