Selena Gomez vs. Paparazzi Showdown [WATCH]: Justin Bieber's Ex Shoves Photog, Demands 'Respect' In Heated Birthday Altercation [VIDEO]

Selena Gomez just wanted to celebrate a fun, relaxing 22nd birhday with some friends - but of course the overzealous paparazzi couldn't allow that!

So the stunning "Come & Get It" songstress finally fought back - well, sort of...

As Mstars previously reported, Gomez was spotted on a yacht in St. Tropez, partying with a slew of pals including model Cara Delevingne and successful businessman Tommy Chiabra. But such fun in the sun soon turned to chaos when Justin Bieber's ex landed back on dry land.

On Monday (July 21), Gomez got a little aggressive with a photog who just wouldn't get out of her face. According to GossipCop, Gomez and Delevingne were deboarding their boat when the parking lot altercation occurred.

The viral paprazzo clip shows Gomez "shoving" the camera guy while demanding "respect."

Check it out:

The photog's comments remain too muffled to understand.

Gomez doesn't necessarily get violant, but fans can tell she's obviously peeved.

Can't a girl enjoy her b-day in peace!

But no - of course the cameras keep rolling!