'Dirty Dancing' Star Jennifer Grey -- Good Genes or Good Docs?

Jennifer Grey is having the time of her life.

Here's the 27-year-old actress before getting her infamous nose job at the premiere of "Dirty Dancing" in 1987 (left) -- and the 52-year-old at a 25th anniversary screening of the classic dance flick in Hollywood on Tuesday (right).

Even after all these years, no one puts baby in the corner.