Robin Williams to resume stand-up tour

NEW YORK, May 14 (UPI) -- Robin Williams, who recently underwent heart surgery, has announced he will resume performances of his one-man comedy show Sept. 30 in Bloomington, Ind.

The 57-year-old actor-comedian is scheduled to continue his "Weapons of Self-Destruction" tour through Nov. 28, E! News reported.

"I have one new valve and a repaired valve," Williams said on "Late Show with David Letterman" Wednesday night. "I have a cow valve, which is great, and the grazing's been fun -- and I give a good quart of cream, too, my friend."

During his appearance on the chat show to promote his role in the upcoming big-screen adventure comedy "Night at the Museum: Battle of the Smithsonian," Williams referred to himself and Letterman, who underwent quintuple bypass surgery in 2000, as the "brotherhood of the zipper chests."

Williams also recalled first realizing something was wrong when he started experiencing shortness of breath while out on tour.

"I realize now, shortness of breath is kind of code for heart problem, just like exhaustion is code for alcoholic," he quipped.

"You do get a second lease on life, and it's a gift, you know, thank you," he told Letterman and his audience on a more serious note. "And thank all of you. It's, like, a great thing."