The "Harry Potter" celebrity currently stars in the Broadway show "How to Succeed in Business Without Really Trying" as J. Pierrepont Finch. Radcliffe says he will perform the song "Brotherhood of Man."
Radcliffe isn't nominated for a Tony, but says he is rooting for co-stars co-stars John Larroquette and Tammy Blanchard, who are up for awards.
"Harry Potter and the Deathly Hallows: Part 2" is set for release July 15.
The Associated Press contributed to this story