Kramer Makes A Controversial Comedic Catastrophe

Michael Richards' racist N-word-laced rant is sending shockwaves across America.

Leading entertainment website TMZ.com obtained the explosive video of Richards, best known as the lovable, laughable Kramer on “Seinfeld,” on a stunning screaming tirade at hecklers last Friday at Los Angeles' Laugh Factory.

“Throw his a** out,” Richards said. “He's a n*****. A n*****. Look, there's a n*****!”

When Richards told a heckler that his boo's were uncalled for, and the heckler fired back, Richards spouted out, “It's uncalled for you to interrupt my a**, you cheap mother-f*****. They're going to arrest me for calling a black man a n*****?”

Richards refused to stop, even as audience members walked out in disgust.

A minute later, Richards finally walked off stage.

On Monday, the fallout intensified at The Laugh Factory.

Jerry Seinfeld told “Extra,” “I am sick over this. I'm sure Michael is also sick over this horrible, horrible mistake. It is so extremely offensive. I feel terrible for all the people who have been hurt.”

George Wallace, Seinfeld's good friend who performs standup nightly at the Flamingo in Vegas, heard the story from Seinfeld himself early Monday and had this stern message for Michael.

“Do you hear me? You cannot use the N word,” he said.

Now “Extra” has learned that Jerry will likely speak out about the controversy on Letterman.

“Jerry is going to be on Letterman tonight, I'm sure he's going to be talking about it,” Wallace said.

On Monday, Harvey Levin, managing editor of TMZ.com, which obtained the explosive video, predicted that the scandal will eclipse Mel Gibson's anti-Semitic tirade.

“I think this is going to become a big deal,” he said.