Sterling K. Brown on his deleted song from 'Frozen 2'

Sterling K. Brown joins the animated Disney movie "Frozen 2." The sequel to the highly successful 2013 film follows Elsa the Snow Queen and her sister Anna as they embark on an adventure to a faraway kingdom. Kristen Bell, Idina Menzel, Jonathan Groff and Josh Gad all reprise their roles as Anna, Elsa, Kristoff and Olaf. They're joined by new cast members: Brown, Evan Rachel Wood, Alfred Molina, Jason Ritter and Rachel Matthews.

Brown plays Lt. Mattias, who was once a part of the Arrendelle guard before he became trapped in the Enchanted Forest. He told Yahoo Entertainment that he had to sing to audition for the role but sadly his musical number in the film was cut. "There was a song that I was going to sing that ultimately they felt didn't fit in with the story," he said. "When 'Frozen 3' comes along you'll get the chance to check out the vocal stylings." Luckily, Brown gave us details about what the deleted tune was all about.

Watch the video above to find out.