"Your comedy can be a little darker. Is it hard for you to write for child characters?" O'Brien asked Minchin.
"I use a lot of swearing, but it's not a compulsion. It's not a disorder I have," he joked. He went on to explain that swearing is appropriate for some comedy, though admittedly not for a family musical. Minchin went on to say how much his daughters enjoyed Matilda - The Musical.
Watch the interview below.
Minchin, who was nominated for a Tony Award for Best Original Score for Matilda, is writing the music and lyrics to the new musical Groundhog Day, with a book by Danny Rubin, adapted from the 1993 film of the same name.
Groundhog Day, slated to open on Broadway in spring 2017, follows the remarkable predicament of Pittsburgh TV weatherman Phil Connors, who finds himself living the same day on a loop, repeating the same thing over and over again.