This video is great!!!
New England Patriots mega-fan Mark Wahlberg celebrating in the parking lot with fans ... and then giving his own Pats hat to a young fan who asked for a selfie.
You gotta see the clip ... all the kid asked for was a pic, but Mark went the extra mile ... and the crowd loved it.
It was a big night for Mark, who also debuted a new "Ted 2" trailer during the game ... featuring a scene in which MW and Ted try to steal Tom Brady's baby batter.