Harris, who appeared on Broadway in Assassins, has been a popular emcee for the event, having hosted the 63rd, 65th and 66th Annual Tony Awards. Harris will also act as a producer, along with executive producers Ricky Kirshner and Glenn Weiss of White Cherry Entertainment.
"I'm very excited to be back hosting the Tony Awards at the legendary Radio City Music Hall. It'll be more impressive than ever - if my math is correct, it will be 267 times bigger than last year," Harris said in an earlier statement. "Oh, wait. No, that can't... hold on... carry the one... I'm awful at math. But rest assured, the show will rock!"
Harris has been seen on Broadway in Assassins, Proof and Cabaret. He also starred in the New York Philharmonic production of Company. The performer is the winner of two 2010 Emmy Awards and was nominated for his work on the CBS series "How I Met Your Mother."
Tickets to the Tony Awards, which are priced $275 or $475, are available by calling (866) 858-0008, by going to the Radio City Music Hall box office or by clicking here. There is a limit of six tickets per order.
Radio City Music Hall is located at 1260 Avenue of the Americas.
Watch Harris' interview with Letterman below: