I've been teased all through rehearsal! Somebody has a number where they have boxes and they're like, "Jane's going to come popping out of them." Later, there's a balcony scene and they're like, "Jane's going to come flying from the ceiling." We've grown the song "Ilona" into more of a dance number than it normally is, but we are staying very true to [Ilona] being a clerk in a parfumerie in 1934 -- so I don't think there will be any death-defying feats this time.
The two main characters in She Loves Me go from loathing to loving each other. Has anything like that ever happened to you in real life?
I've had it the opposite way. (Laughs.) Unfortunately, mine ended in the loathing. That's why I like musicals. They end up happy.
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What kept you away from Broadway for so long -- and what brought you back?
It was just because 30 Rock ran for so many seasons. Now that I'm on Unbreakable Kimmy Schmidt, because we only do 13 episodes, my time filming is equal to my time off. I love the heightened reality that musicals live on -- the escapism that you get when you can burst into song at any moment.
Your Broadway debut was in the Andrew Lloyd Webber musical Starlight Express, nearly 30 years ago. What do you remember about that experience?
I was still in high school when I got cast. It was as dangerous as legend has it. People fell from bridges and broke their knees and didn't return to the show. But it was a great show to make your Broadway debut in, because it really taught you the rigors and the discipline of eight shows a week. And I still bring out the skates today!
This story originally appeared in the March 12 issue of Billboard.