updated 12/17/2013 AT 3:00 AM ET
•originally published 12/17/2013 AT 8:50 AM ET
All showed off their evolution as artists, performing three songs during Monday’s episode, including duets with their coaches, during which the contestants held their own, and then some, against their celebrity mentors.
A winner will be crowned on the show’s finale Tuesday.
Adam Levine and Christina Aguilera are the only coaches remaining in the competition and both got what they wanted in the final battle as their artists mastered big songs, including the show’s youngest singer, Lee, who offered a showstopping closer on the Dreamgirls power ballad “And I Am Telling You I’m Not Going.”
“The amount of talent you have in that little body, for being 16 years old, is unbelievable,” Aguilera told Lee, with whom she has forged a deep bond over the past few weeks.
“To see you evolve on the show – sister, that was amazing,” three-time winner Blake Shelton told Lee.