Pakistan, Aug. 20 -- Nick Jonas could have been singing alongside Anna and Elsa - but apparently, he needed a little more homework first.

During the latest episode of the Jonas Brothers' podcast, Hey Jonas!, recorded at D23, Nick opened up about an audition for Frozen that went spectacularly wrong.

With Kristen Bell, Josh Gad and Idina Menzel joining the episode, the singer decided it was the perfect time to confess.

"I auditioned for Frozen. I went in for Kristoff," Nick revealed.

"I went in and they said, 'Okay, what are you going to be singing today?' I said, 'Oh, I don't know.' They said, 'What do you mean you don't know?' They're like, 'Do you have your sheet music?' And I said, 'No, no one told me I had Okay, lets" And so I just...