*TMZ has video of Mike Epps punching a photographer who was allegedly harassing the comedian during a party for Mike’s wife.

It all went down at the Key Club in Detroit on Saturday, Nov 27. Epps tells TMZ the photographer was talking trash to him and his wife while filming them inside the restaurant.

Epps — who played the “wrong Doug” in “The Hangover” — can be seen throwing one haymaker as security instantly swarmed in to break up the melee.

Click here to watch video.

Epps tells TMZ, “It was a private celebration for my wife’s birthday. I asked the photographer numerous times not to film, but he refused to let up. I then attempted to retrieve the tape from the camera.”

Attempts to reach the photographer — who was escorted out of the restaurant post-beatdown — were unsuccessful.