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					Originally posted by dinorel  I don't know why she abuses of playback and lip-syncing. 
She is totally capable of singing , actually she is a good singer she controls her voice , she is way better than Rihanna's and Katy Perry's live singing.    
she proved she is totally capable of singing on the Circus starring tour with The Alanis Morissette cover ... and she sang live "Dont let me be the last to know" on the FF tour right? .... I mean she is great, she should just get rid of the excess of playback thats all   | 
	
 Her songs are really hard to sing because of the production and the dancing. She usually sings the down tempos live. 
And I think her vocal capacity diminished because of the smoking.
I tried singing Womanizer and Circus back to back and ended up without breath