Jimmy Fallon and Jennifer Lopez each have a new pair of tight pants, but maybe their town isn't big enough for two pairs of tight, white pants.

Things start out innocent enough, until Jennifer switches into Jenny From The Block.

"Listen up you little bi%$h!" is the one line that changes everything.

In the end, we get to see what we were all expecting to see.  J Lo's infamous rear end in her tight pants, which end up being the only tight pants in town.