Jim Parsons, who will star in the upcoming Roundabout Theatre Company production of Harvey , will appear on "The Late Show with David Letterman" May 8.

Jim Parsons stopped by LATE SHOW WITH DAVID LETTERMAN and spoke about his recent 'Kiss-My-Ass' 40th birthday as well as the upcoming guest star appearance by Bob Newheart on the hit CBS comedy ...

“I did not know Chuck Lorre at the time,” Parsons admitted to David Letterman. “I thought he was talking about Chuck Woolery.” ...

In 1994 on the Late Show with David Letterman, Jim Carrey delivered one of his most remarkable "Late Night" appearances.