Harry Connick Jr. is so pissed off over that non-Pass Interference call at the end of the NFC championship game, he wrote a letter to Roger Goodell saying he's boycotting the Super Bowl.
The Grammy-winning crooner is a HUGE Saints fan (he was born and raised in New Orleans) -- and while he's usually a chill guy, his blood was BOILING when his team got screwed by the refs in the waning minutes of the game.
So, Connick decided to pen a letter to the NFL boss -- telling the Commish he's mad as hell at the officiating and he ain't gonna take it anymore.