Koryn, who is on "Team Pharrell," performed "Oh Mary Don't You Weep" by Aretha Franklin.
Adam said he's never seen an artist on the show have such a "drastic, incredible and unbelievable" journey. Christina admitted she's scared of who Koryn will become in the music industry -- as if she'd be intimidated by her talent down the road -- and Pharrell commented that Koryn makes "impossible" just a word and she showed dreams really can come true.
India, who represents "Team Christina," took the stage with "Earth Song" by Michael Jackson.
Pharrell explained that everyone wants to feel what she feels. Adam confessed he was feeling so many different emotions after listening to her sing, and Christina said she watched a storybook come to life onstage. Christina also called her artist "a superstar" and praised her for doing a "phenomenal" job.
India's first song of the night, which Christina picked for her, was "Gravity" by Sara Bareilles. Blake admitted he'd be shocked if she didn't make it into the finale.
Koryn initially took the stage with "One" by U2, which was later recorded by Mary J. Blige.
Below is a list of the other three semifinalists and what they performed:
- Team Adam's Joshua Davis from Traverse City, MI: "I Can't Make You Love Me" chosen for him by Adam and "When I Paint My Masterpiece" for his hometown dedication.
- Team Blake's Meghan Linsey from New Orleans, LA: "I'm Not The Only One" selected for her by Blake and "Tennessee Whiskey" by George Jones for her hometown dedication.
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- Team Pharrell's Sawyer Fredericks from Fultonville, NY: "For What It's Worth" picked for him by Pharrell and "One Thousand Years" for his hometown dedication
Another artist will be eliminated during Tuesday night's results show on NBC. The remaining singers will compete in next week's finals and only one of them will be crowned "The Voice."