Brown revealed before her audition that she was dedicating her Blind Audition to her late father, who died before Christmas. The singer claimed that her dad had given her his approval to appear on the BBC talent show. "He wanted me to give it everything," she said.
Sir Tom Jones was the only coach who turned his chair for Brown. However, Jessie J applauded the teenager for her "insane" voice and "style".
Jones commented: "She's got some voice... I heard something in that girl's voice I haven't heard in a long while."
The 'Green Green Grass of Home' singer claimed that it was Brown's "big note" in the song that sealed the deal for him pressing his buzzer.
"Anyone with lungs that big has to be something special," said Jones.
The Voice UK continues next weekend with a double bill on Saturday and Sunday as the show enters the Battle Round stages.
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Photo gallery - Voice UK Blind Auditions week four