because Gaga is close to the camera than Beyonce :D she look higher and taller than her rea forme !

that bothers me since 2010..now someone noticed it..

Ha, I always thought they were dancing in line.But shortga had to be further forwards :3 heh.

shorty gaga

Or maybe because when they're on the floor they haven't got enough space? idk..

OH GOOOOOD IS TRUEEEEEEEEEE

wow i never never never noticed that, :D

thats why she looks tall