person 1: hey isn't that lady gaga over there?  person 2: i don't know, she looks different in every picture i've ever seen of her
a pop star who you wouldn't recognize if you saw her as her body morphs into a different image every day
"person 1: hey isn't that lady gaga over there?  person 2: i don't know, she looks different in every picture i've ever seen of her" What is the definition of "lady gaga"?