Daniel Radcliffe Talks How to Succeed and Tries Stand-Up Comedy on Late Night with Jimmy Fallon

Daniel Radcliffe may be starring eight nights a week as J. Pierrepont Finch in How to Succeed in Business Without Really Trying, but he still has time for a little visit with Late Night’s Jimmy Fallon. On April 25, the always charming actor chatted about his Broadway experience, the upcoming royal wedding and his love of Late Night’s gifts. Of course, no visit to the show is complete without Fallon insisting on a little silliness! After a comment from Radcliffe about stand-up comedians being "insane," Fallon requests Radcliffe himself give it a shot. Watch what happens below!