Can you figure out this third movie riddle,...?

Question

from these clue words?

Here are your 4 clue-words;

Singing

Dancing

New York

Infestation

*Rules*

Those who are new to this, there will be questions posted through the weekdays. The first correct answer will receive the points. New clues will be posted throughout the day if no one gets the correct answer. You can check up to see how the guesses are coming. Guess as many times as you like. Like all of my movie riddles there will be 4 for today (one from the 70's, one from the 80's, one from the 90's and one from this decade,) and good luck.

Answer 1

West Side Story

Answer 2

Chicago

Answer 3

Joe's Apartment

Answer 4

Vangorn2 is good at this