Late-night entertainment shows have the unenviable job this week of trying to make people laugh again, just a few days after the nation's worst terrorist attacks.

Many shows, like sporting and entertainment events across the country, halted Tuesday after the attacks on New York and Washington and the crash of a hijacked plane in Pennsylvania.

Rosemary Keenan, a spokeswoman for the Late Show with David Letterman, said it would resume taping Monday at the Ed Sullivan Theater in midtown Manhattan. She had no details about what guests will appear, or what else will be in the lineup.

"Both the mayor and the president have asked America to get back to business," she said. "Therefore, we will be back on the air Monday night."

Conan O'Brien's Late Night, taped a few blocks away in a studio in New York's Rockefeller Center, is also due back Tuesday. Both shows are about five miles north of the World Trade Center disaster scene.

On the West Coast, Letterman's rival, Jay Leno, will be back on NBC's Tonight Show Tuesday, a spokeswoman said.

CBS' Late Late Show with Craig Kilborn will also be back on Monday, Keenan said. The show, taped in Los Angeles, will not include its usual comic monologue and will also eliminate its regular satirical "in the news" segment, she said.