Because she has nothing to prove vocally. She started her career being all live then gradually started to lipsync more and more by each year to keep her voice. I think we have many examples of powerhouse vocalists that lost their voices due to overusing them.
You're asking why Britney and Mariah get dragged for it; here's why: Britney can't sing, that's known to everybody, and Mariah lipsyncs so bad that she exposes herself each time while Céline does it effortlessly and can make it go unnoticed every single time.
Both Celine and Mariah are lip synching pioneers. Celine is not dragged because she doesn't have a nasty attitude or fans with the same flaw.
Britney is dragged because she simply went too far. None of them compare to the biggest most skilled lip syncher of all times...
A woman who needs no introduction and probably lip synchs her good mornings and might as well be teaching her daughter how to pre-record her words... Beyonce.
Both Celine and Mariah are lip synching pioneers. Celine is not dragged because she doesn't have a nasty attitude or fans with the same flaw.
Britney is dragged because she simply went too far. None of them compare to the biggest most skilled lip syncher of all times... A woman who needs no introduction and probably lip synchs her good mornings and might as well be teaching her daughter how to pre-record her words... Beyonce.
When Christina liped half the b2b tour you got some nerve
Both Celine and Mariah are lip synching pioneers. Celine is not dragged because she doesn't have a nasty attitude or fans with the same flaw.
Britney is dragged because she simply went too far. None of them compare to the biggest most skilled lip syncher of all times... A woman who needs no introduction and probably lip synchs her good mornings and might as well be teaching her daughter how to pre-record her words... Beyonce.