Each contestant sang a song with a powerful, meaningful message as well as a duet with a fellow The Voice competitor.
Blake admitted he'd be shocked if America doesn't vote Kyla, a 33-year-old from Nashville, TN; Spensha, a 25-year-old from Boerne, TX; and Pryor, a 35-year-old from Nashville, TN, into the Season 14 finale.
Spensha for Team Blake "My Church" by Marne Morris.. standing O. Blake said "the dam just broke on that stage" and she let go of everything she had been holding onto.
"I'll be shocked if you're not in the finale after that," Blake said.
Kyla performed "Let It Be" and received a standing ovation from all four coaches.
Alicia said she felt "a magnificence and grandness" in Kyla's performance, and the coach called it "stellar, superstar, and iconic."
And Blake gushed about how he's never felt "more honored to be associated with a human being and vocalist in 14 seasons of doing this show."
"I think the finale is won sometimes in the semifinals. If that's true, you might have just won The Voice. That was incredible," Blake insisted.
Pryor sang "Change the World" by Eric Clapton. Kelly believes people are attracted to him because there's "a plea" or aching in his voice when he sings. Blake called him an incredible singer and assured home viewers he's the epitome of the nice guy who lives next door.
"I'll see you in the finale," Blake noted.
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Brynn, a 14-year-old from Longmeadow, MA, took the stage with "What the World Needs Now Is Love" by Andra Day and earned a standing ovation from the panel.
"For 15, for any age, you are a master... you're so believable and it's so easy to get lost in your performances," Blake told the artist.
And Brynn's coach Kelly complimented her amazing depth, saying her performances are always "epic, tasteful and beautiful."
Jackie, a 22-year-old from Boston, MA, performed "Here I Go Again" by Whitesnake.
Adam said watching her let loose and have fun was so important in this moment. Alicia agreed Jackie had embraced "a sense of abandonment and freedom" and she "smashed" the song.
Rayshun, a 33-year-old from Fort Washington, MD, took the stage with "Imagine" by John Lennon. Rayshun got the coaches all up on their feet.
Kelly said Rayshun exudes so much joy when he sings and the world needs that right now, adding that he gives people an escape -- which is what music is all about.
"You're the last man standing on my team right now, but with all that being said, that was truly inspired... I truly believe the world needs this song right now," Adam gushed.
Kaleb Lee, a 32-year-old from Ormond Beach, FL, performed "It Is Well With My Soul" by Traditional.
Kelly said Kaleb "killed it" and has grown exponentially in the competition. She said performing is his gift and his purpose, adding that the song was "so beautiful."
Alicia admitted she's blessed to be working with him and be a part of this journey with him. She said Britton refines himself week to week and expresses himself as an artist more and more.
"There's nothing that you can't do and there's a deep emotion that you can convey that's so far beyond your years... What you're accomplishing and what you're going to accomplish is outrageous," Alicia explained.
As for the duets, Brynn sang with Britton, Kaleb performed with Pryor, Kyla sang with Spensha, and Jackie performed with Rayshun.
Four artists will unfortunately be eliminated from The Voice on Tuesday night's results show, sending four contestants to next week's finale.