Like 1989

I would like to know if anyone can help me to figure out the meaning of the phrase: "look like 1989".

Context: It 's a tv program about fashion and the presenter says: "Ladies, tired of looking like 1989?"
In the program the guests will go through a series of fashion transformations.

It's quite literal. Fashion has changed and if you still look like you did almost 20 years ago, you're in need of a transformation.

Oh? I need a transformation because I *don't* look like I did 20 years ago. ~rb

You look better than ever. Don't change a thing.

Well, clearly the 80's revival hasn't hit your neck of the woods - all the bright young things look exactly like I looked 20 years ago. Pamela