\"It's a beautiful story about love, about hope, about loss and kind of journeying through your biggest struggle and fear and coming out the other side still believing in God,\" Apa explained.

But Apa said the most challenging part for him was doing his own vocals.

\"PHOTO:
Michael Kubeisy/Lionsgate
PHOTO: KJ Apa stars as 'Jeremy Camp' in "I Still Believe."
>

\"I play the guitar, but I’m not a very confident singer,\" Apa said. \"So that was honestly one of the things that made me hesitant about playing the role -- I had a lot of help from a lot of people to get me there.\"

\"I Still Believe\" will be in theaters nationwide on March 13.

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