David Letterman is going to have to sit in the hot seat on Sept. 7

Letterman's show was extremely unconventional. For starters, Letterman was very political, whereas Johnny Carson had steered away from political jokes. Letterman's early antics changed talk shows. He would often stage elevator races in Radio City Music Hall.

David Letterman made random calls to strangers and talked about the strangest subjects. At one point, Letterman got his associate Larry "Bud" Melman to stand outside the Russian Embassy and hand out pamphlets encouraging defection. He often made his guests feel uncomfortable with his intelligent and abrasive style, and guests often participated in funny and unusual skits with him. Letterman became almost an instant success, and some say he surpassed Carson in popularity.

NEW YORK — David Letterman will welcome Barbara Walters back to "The View" when he visits the ABC daytime talk show next month.

ABC said Wednesday that Letterman, host of CBS' "Late Show," will make his first guest appearance on "The View" on Sept. 7. That's the day that co-panelist Walters returns to the air after taking the summer off to recover from open-heart surgery. The show also marks the start of the 14th season of "The View."

Other guests scheduled that week include former Secretary of State Colin Powell and actor Danny DeVito.

Besides Walters, "The View" stars Joy Behar (BAY'-har), Whoopi Goldberg, Elisabeth Hasselbeck and Sherri Shepherd.

David Letterman is going to have to sit in the hot seat on Sept. 7, when he’ll make his first appearance on the 14th season premiere of The View.

The episode also marks Barbara Walters' return to regular hosting duties since her recovery from heart surgery and President Barack Obama’s appearance. According to ABC, OnTheRedCarpet.com’s parent company, the show will also feature a "surprise musical number."

Other guests lined up for the premiere week include Gen. Colin Powell, Condoleezza Rice and Danny DeVito.

DeVito had an infamous appearance on a November 2006 episode of the show, where he slurred his words and told the hosts, "I knew it was the last seven limoncellos that was going to get me."