Idina Menzel and Kristin Chenoweth reveal their favorite Wicked songs — and they're not what you'd expect

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That's always been the case for Idina Menzel and Kristin Chenoweth, who originated the roles of Elphaba and Galinda in the Broadway production of Wicked. The two theater icons are having a moment as the first half of a two-part film adaptation, Wicked, prepares to fly into cinemas on Nov. 22. And it's allowed for a little reminiscing.

Joining Entertainment Weekly for an exclusive conversation (full video coming soon!) between the original stage witches and the new movie witches, Cynthia Erivo (Elphaba) and Ariana Grande (Glinda), Menzel and Chenoweth reveal their favorite songs in the show — and they're not what you might expect.

After Erivo notes that she had previously only sung Glinda's second act number, "Thank Goodness," for a public audience before her Elphaba audition, Menzel jumps in to exclaim, "That's my favorite song. Don't tell anyone!"

"I love all the Elphaba songs, of course," she adds. "But when you're doing it eight shows a week, you [start to love the songs that aren't yours]."

On a similar note, it turns out that Chenoweth's favorite song is not technically a Glinda number (though she does sing it in an Act II reprise). "'I'm Not That Girl' is my favorite," Chenoweth adds before Menzel teases Erivo, asking, "Did they test you to see if you could hit the I'm not that [drops voice] girl?"

Menzel is referring to the infamous final note of Elphaba's rendition of the heartrending ballad, which suddenly drops deep into a lower key. The note is raised a tad in the film version, which director Jon M. Chu says was a mutual decision between the original composer and lyricist Stephen Schwartz and Erivo.

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But Chenoweth has her own memories of that low note. "They made me do it in front of a live audience after [Elphaba] leaves," she says, referring to Glinda's reprise of the ballad. "I have two verses of it."

"Oh, right," adds Menzel. "You have it at the end while the set changed."

Chenoweth affirms Menzel's memory, noting, "I could hear clunk, clunk, clunk in the background and I was like, I'm not that [whispers] girl. It was fine. It was perfect."

Wicked premiered on Broadway in 2003. Based on the 1995 Gregory Maguire novel of the same name and with music and lyrics by Schwartz, the Wizard of Oz prequel musical traces the two witches' paths from students at Shiz University to Elphaba becoming the Wicked Witch of the West. The show went on to earn 10 Tony Award nominations in 2004, including one for Best Musical, winning three.

Watch the video above for more, and look to the western skies, er, EW for more from our conversation with Chenoweth, Menzel, Grande, and Erivo next week.