"Late Show" host and Indianapolis native David Letterman, 54, returned to his home state this weekend to help celebrate his mom's 80th birthday. Together with other members of the Letterman clan, the TV star commandeered Nobleville's Classic Kitchen restaurant for about three hours for Saturday's bash, reports the Indianapolis Star. Dorothy Mengering -- best known as "Dave's mom" -- has endeared herself to "Late Show" viewers with her appearances on her son's show, usually via satellite from her central Indiana home. Letterman quipped about his impending return to the Hoosier state on the CBS show all week. But when Saturday rolled along, "Dorothy was the star, not Dave," said Steve Keneipp, owner and chef at the remote restaurant. "Dorothy was the event." Keneipp appears to have played along with Letterman's sense of fun. Afterward, reports the Star, mother and son slipped out the back door, hopped into a shiny blue import and disappeared into the night. A burly bodyguard in a black T-shirt, blocking the back alley, said that the talk show host wouldn't be talking. But Keneipp was. "Dorothy enjoyed a fabulous party with her children," he said. "It was very nice."