"I've been preparing for quite some time, but I would be lying if I said I wasn't a little nervous . . . OK, a lot nervous," the father of six (Brandi, Trace, Christopher, Miley, Braison and Noah) told The Boot.
But he's also excited to add the work to his resume. "As an actor and a singer-songwriter, this was a great opportunity to learn something new and evolve my career," Cyrus, 51, explained.
"I'm really excited about getting up to New York City and living there. I've never lived in New York City, let alone step out on Broadway and pretend that I was Billy Flynn!" he added about the famous role Richard Gere played in the 2002 film adaptation. "It's going to be so fun."