Justin Bieber lip-syncs his song while showing his belly

[lego 44,165]

​I've only ever heard it from stans without sources  

 

I still didn't see the video where she mimes to the song. I need to see her face. Her lips moving to playback.

Unless you have mic feed from this performance you can't claim that she lip-synched it with 100% certainty.

Wasn't this performance when trucks with her equipment and costumes didn't arrive on time?

This video cannot be used to support

"Lady Gaga does it too, they all do it".

 

 

 

[bionic 50,107]

Wasn't this performance when trucks with her equipment and costumes didn't arrive on time?

​Yeah there was a fire or something too, IIRC