Justin Bieber Roast -- Comedy Central Axes Paul Walker Jokes

The comedians at the Justin Bieber Roast crossed the line when they used the death of Paul Walker to mock the roastee ... so says Comedy Central which is cutting the jokes from the show.

Jeff Ross mocked Bieber, comparing his driving skills to Paul Walker's and then referenced Ludacris' song, "Move Bitch," saying, "Move bitch, get out of the way, is what Paul Walker should've told that tree. Too soon? Too fast? Too furious?"

Apparently the joke royally pissed off Luda and Bieber didn't like it either.

Comedy Central said the joke crossed the line and it will be 86'd from the show.