Find out how Alex Kinsey and Sierra Deaton became Alex & Sierra. You won’t believe what Simon Cowell thought of them when they first took the stage!
The multi-faceted Tim Olstad took the stage first to sing for his life. Watch as he tried to impress the judges with "You Raise Me Up" by Josh Groban.
Tim Olstad challenged himself with a cover of The Jackson 5's "I'll Be There," backed by a choir and a light show. Would it be enough to sway the voting audience?
The guys of Emblem3 thank their fans for their nomination at the Teen Choice Awards.
Making a surprise return to the competition, Josh Levi tackled the Jackson 5 classic "Who's Lovin' You?" With a second life in the competition, how far do you think young Josh can go?
Carlito Olivero stepped up to The X Factor stage to perform The Supremes' "Stop In The Name Of Love." Did Carlito top himself this week?
Singing her rendition of "My Girl," Khaya Cohen knew she had the perfect opportunity to put her spin on a classic. How do you think her version of The Temptations classic fared?
Country-fried trio Restless Road continued to do what they do best by infusing the Commodores' hit, "Easy," with some twang. Do you think they nailed it?
Carlos Guevara, representing the boys, decided to sing the Marvin Gaye hit, "What's Going' On?" What did you think of his performance?
Avicii's current hit, "Wake Me Up," got the country treatment as Restless Road went unplugged! How do you think Colton, Zach, and Andrew did?
Ellona Santiago continued to keep her hot streak of performances alive with her rendition of Lady Gaga's "Applause." What did you think of her performance?
The judges told act after act that they deserved to be in the finale, and many of the contestants made our judges cry with their unplugged performance. Watch this recap and make your Top 4 predictions!