20-year-old Lucy from Sheffield made it through to the live shows on Team Tom on Saturday night.
In the knockout rounds, she performed a cover of Gravity by Sara Bareilles to close the show.
The performance prompted quite the reaction from the coaches, with all four singing Lucy's praises.
Viewers were equally touched by Lucy, who Tom chose as his first finalist.
"The girl has got something special and a whole lot of soul!" one viewer tweeted.
Sir Tom posted online: "That was truly special @lucymilbmusic! My first @thevoiceuk semifinalist, find out who joins Lucy next week! #TeamTom #TheVoiceUK"
Meanwhile, Lucy reacted on Twitter: "I’ve done it!!!!!!!#TheVoiceUK"
"I’m in the bleeding semi final! Shocked is NOT the word ♥️," she added.
In the knockout rounds, each of the 24 remaining acts from the battles are singing for a place in the live semi-finals at the end of March (Saturday, March 31).
After each performance, the coaches will all offer up their views on who was best, but the power over who goes through is solely in the hands of that team's mentor.
In Saturday's first knock out episode, three singers from each team performed before their mentor had to pick one to go through to the live shows.
Alongside Team Tom's Lucy, Olly chose Lauren Bannon, Sir Tom Jones selected Lucy Milburn and Jennifer Hudson picked Gayatri Nair.
The remaining trio of acts currently left in each team will perform next Saturday, where the coaches will each select a second finalist for the live stages.
The Voice UK 2018 airs Saturday night from 8:30PM on ITV.