"I'm realizing now that being on Broadway is like being an athlete," Hudgens told ET at New 42nd Street Studios in New York City. "You have to take such good care of yourself, your body, your vocal chords, just everything because it's tough. It's definitely a hustle."
The $12 million Broadway production opens on Wednesday and the 26-year-old former Disney star will be the main attraction, starring as the title character.
"It's such an iconic part and it's such a powerful part as well," Hudgens said. "I think that it's a role that women, as well as young women, need in this day and age. I think it's going to be really empowering. I've got some really good footsteps to follow behind. I'm just so excited. I love this part and I love this play so much."