“I gotta be honest about that,” Oscar winner Barry Jenkins tells EW.

Blue Ivy Carteris working on her roar, but not necessarily her vocals.

“Blue Ivy doesn’t sing in the movie.

Split photo from Mufasa trailer and Blue Ivy Carter

Blue Ivy Carter will voice Kiara in ‘Mufasa: The Lion King’.Disney; Getty

I gotta be honest about that.

“For me, working with Lin was amazing,” Jenkins continues.

“I’ve never made a musical before.

In a musical, we need to figure that out first!”

The duo quickly bond and become brothers from other mothers.

Would Blue Ivy want to do it?

Would Beyonce want to act opposite her daughter?

Is it too close to home?'”

Jenkins recalled at the time.

“But once we put the question to them, they both responded with enthusiasm.”

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In addition, Rose teases the song she gets to sing, titled “Milele.”

Mufasa: The Lion Kingwill open in theaters this Dec. 20.

Reporting by Sydney Bucksbaum.