Scherzinger had earlier described the Overs as a "special" category because she knew how much succeeding in the competition meant to them.
"Over 30s is a special category. These people are ready and seasoned. They've been working for it their whole lives and they want this more than anything. For most of them, they are feeling like it's their last chance."
> X Factor USA reveals Top 16 as competition takes a twist
> X Factor USA Top 16: Do you agree with the judges' choices?
The Top 17 acts will perform live Tuesday, October 25 at 8/7c on Fox, when the judges will decide which contestants become the 'top finalists'. Those finalists will perform live for America's votes for the first time on Wednesday, November 2 at 8/7c on Fox.
Here are the four Overs going through to the next round:
Hometown: Tacoma, WA
Currently Resides: Edmonds, WA/Seattle, WA
Talking about the lessons he's learned from the show, he said: "The experience has been wild and exciting, at the same time a little bit scary…
"One of the things I've learned is you can teach an old dog new tricks. I can still learn something. The show has taught me that I am more flexible than I thought I was."
LeRoy thanked fans and the judges for their support in a message posted on the show's official website, adding: "It's been a whirlwind, a rollercoaster of emotions, and I'm happy to be here... I'm just excited to move on."
Official Twitter: @LeRoyBell
Official Facebook: www.facebook.com/LeRoyBellMusic
Watch LeRoy Bell's first audition below:
Hometown: Brooklyn, NY
Currently Resides: Los Angeles, CA
Talking about the X Factor experience, she said: "Being a part of the show so far has been an emotional rollercoaster. Every feeling I could feel, I have felt during this journey…
"I am happy and so excited. The momentum is just incredible. It's like I'm a 10-year-old and it's Christmas and I'm so excited."
In her message posted on the show's official website, the singer thanked her family, friends and fans: "I'm just elated right now. I can't thank everybody enough for all their support and love." She also gave a shout out to the other judges, saying: "I know I've had [Simon's] support too and even his critique at Boot Camp helped me here at Judges' Houses."
Official Twitter: @StacyFrancis
Official Facebook: www.facebook.com/officialStacyFrancis
Watch Stacy Francis's first audition below:
Hometown: Memphis, TN
Currently Resides: Chicago, IL
Talking about the live shows, he said: "It is going to be exciting; I'm gonna set the place on fire, but not literally. There is nothing like The X Factor. I have never experienced anything like this."
Dexter told fans in his official website video message that he had dived into the pool at Nicole's house "with joy" when he made it to the live shows, adding: "I want to thank Simon Cowell, Paula Abdul, LA Reid and Nicole... Be looking out for Dexter Haygood, I have a lot of things under my sleeves for you."
Official Twitter: @dexterhaygood
Official Facebook: www.facebook.com/officialDexterHaygood
Watch Dexter Haygood's first audition below:
Hometown: Wooster, OH
Currently Resides: Columbus, OHd
Talking about his time on the show, he said: "The X Factor experience has been really great. It has been a serious challenge and any time you challenge yourself it is a good thing.
"The experience on The X Factor has given me a lot of insight into who I am and a lot of things that I didn't know."
Josh told fans in a video message posted on the official website that singing for Iglesias and Scherzinger had been an honour but he was now looking to take the next step: "I'm not satisfied yet. I want to keep going and the competition really starts for me now. I'm ready and excited and I can't wait to get started. I have a lot of work to do and it's going to be fun."
Official Twitter: @theJoshKrajcik
Official Facebook: www.facebook.com/joshkrajcikmusic
Watch Josh Krajcik's first audition below:
X Factor continues Tuesday, October 25 at 8/7c on Fox
All Images: Copyright: Fox