Singer-without-a-label Paris, 27, was at the establishment's opening party with the winner of her BFF reality show, Brittany Flickinger, 24.

But while the two socialites were inside yukking it up, a tempestuous brawl was brewing outside between party patrons and photographers waiting to get snaps of the stars.

Unknowingly, Hilton and Flickinger stepped into the ring of violence as they were leaving. Paris was pulled while trying to head to her car, causing her to audibly yelp. Then a man began repeatedly punching and yelling at one of the paparazzi.

Check out the man-on-man violence in the Hollywood.tv video below:

Well, the good thing is that traumatic events like this often make people grow closer.

Maybe Brittany really will end up BFFs with Paris, after all!